My Life Alert Bracelet Essay Example for Free

My Life Alert Bracelet Essay My Life Alert Bracelet will use many distribution channels to benefit the company success, and use strategies to help promote its product. My Life Alert Bracelet will take advantage of the special promotion provided by our company. We will establish an email database, so we can send customers our special coupons and invite them for the perfect sale events that we offer for that season. We can also attach our coupons to the customer’s receipts to allow future saving on their purchases. Therefore we will be using different advertisements to get our name out to all of the community near and far off. Our goal will be to display the product we offer. Another technique will be to advertise our low coast products to the local community and surrounding areas, by using the free publication aids to attract the attention of the viewers and other vendors that would like to purchase these alert bracelets for their own personal or business uses. Our company plans is to utilize local newspapers advertisements, and making sure we meet with inquiring customers so they will help get the word out through word of mouth from experience. Last but not least we will post flyers out in the local business and the community for the target market. My Life Alert Bracelet will have to persuade the potential audience that they want and need our bracelet for the safety of their family or friends. In the process of being successful with our advertisement can create and also nurture a sense of I want and I need this less expense product to benefit the safety of their family member. The best way our company can measure the effectiveness from our advertisement will be to see how many consumers was aware of our product and the service we offers, meanwhile making contact with the company to purchase our product. After the publicity has simmered down, our company will then compare our current data with our past data in a quarterly session to evaluate our positive success or our negative success of our company. Never the less many people are interested in staying and being more healthier, therefore many people are looking to use the My Life Alert Bracelet to properly identify their medical concerns in the event of an accident or any medical emergency. The M.L.A.B. will help the medical staff or medical personnel to assist you in a timely manner. The promotion strategies that will be utilized in our company will be as follow: 1.Sale Promotion will be one of the methods used to help out with our company promotion strategy. Sale promotion is commonly used for the increase in a sale for a short period. 2. Public Relation it will help develop a positive relationship with the media/media. this will hopefully help the company to handle all negative attention while remaining professional with a successfully mind frame. 3. Personal Selling offering face to face one on one sale to our customers, giving them the best quality sales. 4. Direct Mail this is personalizing the mail by putting the name of the target audience you are trying to reach out too. This will directed to a particular person in hope to increase sales. 5. Sponsorship this is networking in giving another organization the permission to list our product or use our logos. By using this method normally have high profiles that are seen by a large audience. 6. Introduction is when the new company is trying to get the word out that they are in the market we can utilize the push/pull strategies to help push the product towards the introduction stage called the lifecycle. 7. Growth after the M.L.A.B. product line has grown and the target market are happy to accept the lifecycle. We offer true loyalty to our value custom. 8. Maturity at this point our company will take full responsibility to encourage the target audience to purchase our product to benefit a life saving experience. This market research is done to indentify the main goal in purchasing this line of product. The M.L.A.B. main purpose is to help your family member in a time of a serious situation that is not caused intentionally. The alert bracelet will alert the medical staff if your love one wonder off or become ill, it will alarm the emergency hotline, and the emergency staff will place a call to the medical official which will alert the family member of the person condition. This bracelet will alert the medical staff of any medical condition you may have, and any allergic reaction you have or had at one time. The M.L.A.B. is sold at a low price making it affordable for person with insurance or non-insurance persons. We have booths set up at the local Mall or you can stop by the main building to make your purchase. The consumer today has become very demanding. They want high quality products as well as high quality customer service. Delivering value customer service is very important to our company. When there is poor customer service it may bring the value of our company down. The customer are not satisfied, and may bring a gap between the two of us because they might be thinking what should be done, and my company thinking how it should be done causing a dissatisfaction in the mist. When having customer’s complaints that we were not ready to handle at that time can make the customers seek other companies for their service. Our goal is to keep the customers happy at all times, the customers are the main focus because if they are happy then for profit will be greater. In saying that we look forward in customers satisfaction and we make sure we do our best in presenting quality customer service to maintain a quality profits.

Human Nature in Lord of the Flies Essay -- essays

Human Nature in Lord of the Flies Lord of the Flies, by William Golding, is a captivating narrative in which the reader lives through the trials and tribulations of a society set up and run by a group of marooned British teens. Golding believes that the basic nature of the individual is evil. The group ultimately proves this thesis by their actions. The evils of the individual are shown through the actions of the group’s hunter Jack, the murders of two members of the society, Simon and Piggy, the attempted murder of the group’s leader Ralph, and the ultimate destruction of the island. Jack has a natural longing to be number one, he was not satisfied with being the leader of the hunters, and this ultimately caused many of the conflicts in the novel. Jack as a senior member of the group felt that he had every right to be the leader and in this he caused the downfall of the society. He used the skills he learned as the leader of the hunters to turn the society against Ralph and the members that would not follow him in his quest to be number one. Simon is the...

Transfer Functions

ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ TRANSFER FUNCTIONS AND BLOCK DIAGRAMS 1. Introduction 2. Transfer Function of Linear Time-Invariant (LTI) Systems 3. Block Diagrams 4. Multiple Inputs 5. Transfer Functions with MATLAB 6. Time Response Analysis with MATLAB 1. Introduction An important step in the analysis and design of control systems is the mathematical modelling of the controlled process. There are a number of mathematical representations to describe a controlled process:Differential equations: You have learned this before. Transfer function: It is defined as the ratio of the Laplace transform of the output variable to the Laplace transform of the input variable, with all zero initial conditions. Block diagram: It is used to represent all types of systems. It can be used, together with transfer functions, to describe the cause and effect relationships throughout the system. State-space-representation: You will study this in an advanced Control Systems Design course. 1. 1. Linear Time-Variant and Linear Time-Invariant SystemsDefinition 1: A time-variable differential equation is a differential equation with one or more of its coefficients are functions of time, t. For example, the differential equation: d 2 y( t ) t2 + y( t ) = u ( t ) dt 2 (where u and y are dependent variables) is time-variable since the term t2d2y/dt2 depends explicitly on t through the coefficient t2. An example of a time-varying system is a spacecraft system which the mass of spacecraft changes during flight due to fuel consumption. Definition 2: A time-invariant differential equation is a differential equation in which none of its coefficients depend on the independent time variable, t.For example, the differential equation: d 2 y( t ) dy( t ) m +b + y( t ) = u ( t ) 2 dt dt where the coefficients m and b are constants, is time-invariant since the equation depends only implicitly on t through the dependent variables y and u and their derivatives. 1 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ Dynamic systems that are described by linear, constant-coefficient, differential equations are called linear time-invariant (LTI) systems. 2. Transfer Function of Linear Time-Invariant (LTI) SystemsThe transfer function of a linear, time-invariant system is defined as the ratio of the Laplace (driving function) U(s) = transform of the output (response function), Y(s) = {y(t)}, to the Laplace transform of the input {u(t)}, under the assumption that all initial conditions are zero. u(t) System differential equation y(t) Taking the Laplace transform with zero initial conditions, U(s) Transfer function: System transfer function G (s) = Y(s) Y(s) U(s) A dynamic system can be described by the following time-invariant differential equation: an d n y( t ) d n ? 1 y( t ) dy( t ) + a n ? 1 + L + a1 + a 0 y( t ) n ? 1 dt dt dt d m u(t) d m ? 1 u ( t ) du ( t ) = bm + b m ? 1 + L + b1 + b 0 u(t) m m ? 1 dt dt dt Taking the Laplace transform and considering zero initial conditions we have: (a n ) ( ) s n + a n ? 1s n ? 1 + L + a 1s + a 0 Y(s) = b m s m + b m ? 1s m ? 1 + L + b1s + b 0 U(s) The transfer function between u(t) and y(t) is given by: Y(s) b m s m + b m ? 1s m ? 1 + L + b1s + b 0 M (s) = = G (s) = U(s) N(s) a n s n + a n ? 1s n ? 1 + L + a 1s + a 0 where G(s) = M(s)/N(s) is the transfer function of the system; the roots of N(s) are called poles of the system and the roots of M(s) are called zeros of the system.By setting the denominator function to zero, we obtain what is referred to as the characteristic equation: ansn + an-1sn-1 + + a1s + a0 = 0 We shall see later that the stability of linear, SISO systems is completely governed by the roots of the characteristic equation. 2 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ______________ __________________________________________________________________ A transfer function has the following properties: †¢ The transfer function is defined only for a linear time-invariant system. It is not defined for nonlinear systems. The transfer function between a pair of input and output variables is the ratio of the Laplace transform of the output to the Laplace transform of the input. †¢ All initial conditions of the system are set to zero. †¢ The transfer function is independent of the input of the system. To derive the transfer function of a system, we use the following procedures: 1. Develop the differential equation for the system by using the physical laws, e. g. Newton’s laws and Kirchhoff’s laws. 2. Take the Laplace transform of the differential equation under the zero initial conditions. 3.Take the ratio of the output Y(s) to the input U(s). This ratio is the transfer function. Example: Consider the following RC circuit. 1) Find the transfer function of the network, Vo(s)/Vi(s). 2) Find the response vo(t) for a unit-step input, i. e. ?0 t < 0 v i (t) = ? ?1 t ? 0 Solution: 3 R vi(t) C vo(t) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ Exercise: Consider the LCR electrical network shown in the figure below. Find the transfer function G(s) = Vo(s)/Vi(s). L R i(t) vi(t) vo(t) CExercise: Find the time response of vo(t) of the above system for R = 2. 5? , C = 0. 5F, L=0. 5H and ? 0 t < 0 . v i (t) = ? ?2 t ? 0 4 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ Exercise: In the mechanical system shown in the figure, m is the mass, k is the spring constant, b is the friction constant, u(t) is an external applied force and y(t) is the resulting displacement. y(t) k m u(t) b 1) Find the differential equation of the system 2) Find the trans fer function between the input U(s) and the output Y(s). 5ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 3. Block Diagrams A block diagram of a system is a pictorial representation of the functions performed by each component and of the flow of signals. The block diagram gives an overview of the system. Block diagram items: Summing point Takeoff point Block Transfer function +_ The above figure shows the way the various items in block diagrams are represented. Arrows are used to represent the directions of signal flow. A summing point is where signals are algebraically added together.The takeoff point is similar to the electrical circuit takeoff point. The block is usually drawn with its transfer funciton written inside it. We will use the following terminology for block diagrams throughout this course: R(s) = reference input (command) Y(s) = output (controlled variable) U(s) = input (act uating signal) E(s) = error signal F(s) = feedback signal G(s) = forward path transfer function H(s) = feedback transfer fucntion R(s) Y(s) E(s) G(s) +_ F(s) H(s) Single block: U(s) Y(s) Y(s) = G(s)U(s) G(s) U(s) is the input to the block, Y(s) is the output of the block and G(s) is the transfer function of the block.Series connection: U(s) X(s) G1(s) Y(s) G2(s) 6 Y(s) = G1(s)G2(s)U(s) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ Parallel connection (feed forward): G1(s) + U(s) Y(s) Y(s) = [G1(s) + G2(s)]U(s) + G2(s) Negative feedback system (closed-loop system): R(s) E(s) +_ The closed loop transfer function: Y(s) G(s) Y(s) G(s) = R(s) 1 + G(s) Exercise: Find the closed-loop transfer function for the following block diagram: R(s) Y(s) E(s) G(s) +_ F(s) H(s) 7 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) __________________________________________________________________ _____________ Exercise: A control system has a forward path of two elements with transfer functions K and 1/(s+1) as shown. If the feedback path has a transfer function s, what is the transfer function of the closed loop system. R(s) +_ Y(s) 1 s +1 K s Moving a summing point ahead of a block: R(s) Y(s) G(s) + R(s) Y(s) +  ± G(s)  ± F(s) 1/G(s) F(s) Y(s) = G(s)R(s)  ± F(s) Moving a summing point beyond a block: R(s) Y(s) + R(s) G(s) Y(s) G(s)  ± +  ± F(s) G(s) F(s) Y(s) = G(s)[R(s)  ± F(s)] Moving a takeoff point ahead of a block: R(s) Y(s) R(s) Y(s) G(s) G(s) Y(s)Y(s) G(s) Y(s) = G(s)R(s) 8 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ Moving a takeoff point beyond a block: R(s) Y(s) R(s) Y(s) G(s) G(s) R(s) R(s) 1/G(s) Y(s) = G(s)R(s) Moving a takeoff point ahead of a summing point: R(s) Y(s) + Y(s)  ± F(s) R(s)  ± F(s) +  ± Y(s) + Y(s) Y(s) = R(s)  ± F(s) Moving a t akeoff point beyond a summing point: R(s) R(s) Y(s) + Y(s) +  ±  ± F(s)  ± R(s) F(s) R(s) + Y(s) = R(s)  ± F(s) Exercise: Reduce the following block diagram and determine the transfer function. R(s) + _ + G1(s) G2(s) G3(s) _ Y(s) + + H1(s)G4(s) H2(s) 9 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ Exercise: Reduce the following block diagram and determine the transfer function. H1 + R(s) +_ + G H2 10 Y(s) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 4. Multiple Inputs Control systems often have more than one input. For example, there can be the input signal indicating the required value of the controlled variable and also an input or inputs due to disturbances which affect the system.The procedure to obtain the relationship between the inputs and the output for such systems is: 1. 2. 3. 4. Set all inputs except one equal to zero Determine the output signal due to this one non-zero input Repeat the above steps for each of the remaining inputs in turn The total output of the system is the algebraic sum (superposition) of the outputs due to each of the inputs. Example: Find the output Y(s) of the block diagram in the figure below. D(s) R(s) +_ G1(s) + + H(s) Solution: 11 Y(s) G2(s) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) _______________________________________________________________________________ Exercise: Determine the output Y(s) of the following system. D1(s) R(s) +_ G1(s) + + Y(s) G2(s) H1(s) + + D2(s) 12 H2(s) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 5. Transfer Functions with MATLAB A transfer function of a linear time-invariant (LTI) system can be entered into MATLAB using the command tf(num,den) where num and den are row vectors co ntaining, respectively, the coefficients of the numerator and denominator polynomials of the transfer function.For example, the transfer function: G (s) = 3s + 1 s + 3s + 2 2 can be entered into MATLAB by typing the following on the command line: num = [3 1]; den = [1 3 2]; G = tf(num,den) The output on the MATLAB command window would be: Transfer function: 3s+1 ————s^2 + 3 s + 2 Once the various transfer functions have been entered, you can combine them together using arithmetic operations such as addition and multiplication to evaluate the transfer function of a cascaded system. The following table lists the most common systems connections and the corresponding MATLAB commands to implement them.In the following, SYS refers to the transfer function of a system, i. e. SYS = Y(s)/R(s). System MATLAB command Series connection: R(s) Y(s) G1 G2 SYS = G1*G2 or SYS = series(G1,G2) Parallel connection: G1 + R(s) SYS = G1  ± G2 or SYS = parallel(G1, ±G2) Y(s)  ± G2 Negative feedback connection: R(s) Y(s) +_ G(s) SYS = feedback(G,H) H(s) 13 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ R(s) Y(s) +_ G1 G2 H Example: Evaluate the transfer function of the feedback system shown in the figure above using MATLAB where G1(s) = 4, G2(s) = 1/(s+2) and H(s) = 5s.Solution: Type the following in the MATLAB command line: G1 = tf([0 4],[0 1]); G2 = tf([0 1],[1 2]); H = tf([5 0],[0 1]); SYS = feedback(G1*G2,H) This produces the following output on the command window (check this result): Transfer function: 4 ——-21 s + 2 Exercise: Compute the closed-loop transfer function of the following system using MATLAB. R(s) +_ 1 s +1 14 s+2 s+3 Y(s) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 6. Time Response Analysis with MATLABAfter entering the transfer function of a LTI system, we can compute and plot the time response of this system due to different input stimuli in MATLAB. In particular, we will consider the step response, the impulse response, the ramp response, and responses to other simple inputs. 6. 1. Step response To plot the unit-step response of the LTI system SYS=tf(num,den) in MATLAB, we use the command step(SYS). We can also enter the row vectors of the numerator and denominator coefficients of the transfer function directly into the step function: step(num,den).Example: Plot the unit-step response of the following system in MATLAB: Y (s) 2s + 10 =2 R (s) s + 5s + 4 Solution: Step Response 2. 5 num = [0 2 10]; den = [1 5 4]; SYS = tf(num,den); step(SYS) Amplitude 2 or directly: step(num,den) 1. 5 1 MATLAB will then produce the following plot on the screen. Confirm this plot yourself. 0. 5 0 0 1 2 3 Time (sec. ) 4 5 For a step input of magnitude other than unity, for example K, simply multiply the transfer function SY S by the constant K by typing step(K*SYS). For example, to plot the response due to a step input of magnitude 5, we type step(5*SYS).Notice in the previous example that that time axis was scaled automatically by MATLAB. You can specify a different time range for evaluating the output response. This is done by first defining the required time range by typing: t = 0:0. 1:10; % Time axis from 0 sec to 10 sec in steps of 0. 1 sec and then introducing this time range in the step function as follows: step(SYS,t) % Plot the step response for the given time range, t This produces the following plot for the same example above. 15 6 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) _______________________________________________________________________________ Step Response 2. 5 Amplitude 2 1. 5 1 0. 5 0 0 2 4 6 8 10 Time (sec. ) You can also use the step function to plot the step responses of multiple LTI systems SYS1, SYS2, †¦ etc. on a single figure in MATLAB by typing: st ep(SYS1,SYS2,†¦ ) 6. 2. Impulse response The unit-impulse response of a control system SYS=tf(num,den) may be plotted in MATLAB using the function impulse(SYS). Example: Plot the unit-impulse response of the following system in MATLAB: Y(s) 5 = R (s) 2s + 10 Solution: Impulse Response um = [0 5]; den = [2 10]; SYS = tf(num,den); impulse(SYS) 2. 5 2 impulse(num,den) Amplitude or directly 1. 5 1 This will produce the following output on the screen. Is that what you would expect? 0. 5 0 0 0. 2 0. 4 0. 6 Time (sec. ) 16 0. 8 1 1. 2 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 6. 3. Ramp response There is no ramp command in MATLAB. To obtain the unit ramp response of the transfer function G(s): multiply G(s) by 1/s, and use the resulting function in the step command.The step command will further multiply the transfer function by 1/s to make the input 1/s2 i. e. Laplace transform of a un it-ramp input. For example, consider the system: Y(s) 1 =2 R (s) s + s + 1 With a unit-ramp input, R(s) = 1/s2, the output can be written in the form: Y(s) = 1 1 1 R (s) = 2 ? s + s +1 (s + s + 1)s s 2 1 ? ?1 =? 3 2 ?s + s + s ? s which is equivalent to multiplying by 1/s and then working out the step response. To plot the unitramp response of this system, we enter the numerator and denominator coefficients of the term in square brackets into MATLAB: num = [0 0 0 1]; en = [1 1 1 0]; and use the step command: step(num,den) The unit ramp response will be plotted by MATLAB as shown below. Step Response 12 10 Amplitude 8 6 4 2 0 0 2 4 6 Time (sec. ) 17 8 10 12 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 6. 4. Arbitrary response To obtain the time response of the LTI system SYS=tf(num,den) to an arbitrary input (e. g. exponential function, sinusoidal function .. etc. ), we can use the lsim command (stands for ‘linear simulation') as follows: lsim(SYS,r,t) or lsim(num,den,r,t) here num and den are the row vectors of the numerator and denominator coefficients of the transfer function, r is the input time function, and t is the time range over which r is defined. Example: Use MATLAB to obtain the output time response of the transfer function: Y(s) 2 = R (s) s + 3 when the input r is given by r = e-t. Solution: Start by entering the row vectors of the numerator and denominator coefficients in MATLAB: num = [0 2]; den = [1 3]; Then specify the required time range and define the input function, r, over this time: t = 0:0. 1:6; r = exp(-t); % Time range from 0 to 6 sec in steps of 0. 1 sec Input time function Enter the above information into the lsim function by typing: lsim(num,den,r,t) This would produce the following plot on the screen. Linear Simulation Results 0. 4 0. 35 Amplitude 0. 3 0. 25 0. 2 0. 15 0. 1 0. 05 0 0 1 2 3 Time (sec. ) 18 4 5 6 ECM2105 – C ontrol Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ TUTORIAL PROBLEM SHEET 3 1. Find the transfer function between the input force u(t) and the output displacement y(t) for the system shown below. y(t) b1 u(t) m b2 where b1 and b2 are the frictional coefficients.For b1 = 0. 5 N-s/m, b2 = 1. 5 N-s/m, m = 10 kg and u(t) is a unit-impulse function, what is the response y(t)? Check and plot the response with MATLAB. 2. For the following circuit, find the transfer function between the output voltage across the inductor y(t), and the input voltage u(t). R u(t) L y(t) For R = 1 ? , L = 0. 1 H, and u(t) is a unit-step function, what is the response y(t)? Check and plot the result using MATLAB. 3. Find the transfer function of the electrical circuit shown below. R L u(t) y(t) C For R = 1 ? , L = 0. 5 H, C = 0. 5 F, and a unit step input u(t) with zero initial conditions, compute y(t).Sketch the time function y(t) and pl ot it with MATLAB. 19 ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 4. In the mechanical system shown in the figure below, m is the mass, k is the spring constant, b is the friction constant, u(t) is the external applied force and y(t) is the corresponding displacement. Find the transfer function of this system. k u(t) m For m = 1 kg, k = 1 kg/s2, b = 0. 5 kg/s, and a step input u(t) = 2 N, compute the response y(t) and plot it with MATLAB. b y(t) 5.Write down the transfer function Y(s)/R(s) of the following block diagram. R(s) Y(s) K +_ G(s) a) For G(s) = 1/(s + 10) and K = 10, determine the closed loop transfer function with MATLAB. b) For K = 1, 5, 10, and 100, plot y(t) on the same window for a unit-step input r(t) with MATLAB, respectively. Comment on the results. c) Repeat (b) with a unit-impulse input r(t). 6. Find the closed loop transfer function for the following diagram. R(s) E(s) Y(s) G(s) +_ F(s) H(s) a) For G(s) = 8/(s2 + 7s + 10) and H(s) = s+2, determine the closed loop transfer function with MATLAB. ) Plot y(t) for a unit-step input r(t) with MATLAB. 7. Determine the transfer function of the following diagram. Check your answer with MATLAB. _ R(s) +_ s s + + 1/s s 20 1/s Y(s) ECM2105 – Control Engineering Dr Mustafa M Aziz (2010) ________________________________________________________________________________ 8. Determine the transfer function of the following diagram. R(s) +_ +_ 50 s +1 Y(s) s 2/s 1/s2 2 +_ a) Check you result with MATLAB. b) Plot y(t) for a unit-impulse input r(t) with MATLAB. 9. Determine the total output Y(s) for the following system. D(s)

Examples Of Racism In To Kill A Mockingbird - 795 Words

Do you see people for their differences? Do you believe it’s right to think of them differently because the color of their skin is different or even how they think? In the book To Kill a Mockingbird it shows a man being wrongfully tried in a court of law and is not judged on the crime or the evidence that is given but only by the color of his skin. This is seen with Tom Robinson with his skin color, Atticus because he’s trying to treat every human being equally, and Boo Radley is judged because he never comes out of his house. Racism is a terrible thing and in this book it shows how it can affect someones life and even thoughts. For example Tom Robinson is accused for beating and raping a young white women named Mayella Ewell.†¦show more content†¦He show’s equality the best he can, and helps his children choose the right from wrong. For example he says. â€Å"I do my best to love everybody... Im hard put, sometimes—baby, its never an insult to be called what somebody thinks is a bad name. It just shows you how poor that person is, it doesnt hurt you. (Lee, 108) This is probably one of the best father’s you could ask for seeing that he passes on his wisdom to his children and will fight against any prejudice. Another memorable quote is â€Å"You really never understand a person until you consider things from his point of view - until you’ve climbed into his skin, and walked around in it.† (Lee, 30) Kids talk about Boo Radley as if he’s a scary story being told around a campfire. They’ve never actually seen him so it’s hard for them to believe he’s a real person, and so they feel free to make up stories and rumors about him. Dill says Well howd you feel if youd been shut up for a hundred years with nothin but cats to eat? (Lee, 47) This is one of the many things the kids have made up about Boo Radley, because it’s pretty hard to believe he’s been living on cats let alone for a hundred years. Another example from the book is â€Å"he dined on raw squirrels and any cats he could catch, thats why his hands were bloodstained – if you ate an animal raw, you could never wash the blood off. There was a long jagged scar that ran acrossShow MoreRelatedExamples Of Racism In To Kill A Mockingbird774 Words   |  4 PagesIn the novel To Kill a Mockingbird racism is a big theme and is relevant between whites and blacks throughout the story. Racism is a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race, according to Merriam-Webster. But not just in the novel is racism present. Also the United States had and still has a problem with racism. And America will never achieve racial, but also social, equality. AfricanRead MoreExamples Of Racism In To Kill A Mockingbird1249 Words   |  5 Pagesneeded jobs besides themselves. They just could not take the change that was happening and that is when racism started, which then lead to mobs, which then also lead to the unfortunate event of the Scottsboro trials. The first connection to America’s actual history is the presence of the Jim Crow laws in To Kill a Mockingbird by Harper Lee. The Jim Crow Laws were unfair and dumb. Some examples would be the law about blacks having sexual intercourse with whites. The whites believed that it would createRead MoreExamples Of Racism In To Kill A Mockingbird741 Words   |  3 PagesTo Kill A Mockingbird Essay Assignment: Topic 2 To Kill a Mockingbird took place during the 1930s, a period shortly after the American civil war in Maycomb County, Alabama, the deep south where black people suffered from racism and discrimination. In this book, Tom Robinson was accused of raping a white woman, which was something that he’s never done, even though all the evidence proved that he did not violate that white woman, Tom was judged guilty because he was a black man. Racism is presentedRead MoreExamples Of Racism In To Kill A Mockingbird1341 Words   |  6 PagesThe racial concerns that Harper Lee addresses in To Kill a Mockingbird began long before her story starts and continued long after. In order to sift through the many layers of prejudice that Lee exposes in her novel, the reader needs to understand the complex history of race relations in the South. Many states — particularly in the South — passed Jim Crow laws (named after a black, minstrel show character), which severely limited how African Americans could participate in society. The U.S. SupremeRead MoreExamples Of Racism In To Kill A Mockingbird By Harper Lee1142 Words   |  5 Pages Harper Lee wrote To Kill A Mockingbird during a time where racism was prevalent. The book highlights many different ways racism occurred. It also shows what growing up as a child, in this case specifically a young girl, is like in the south during the time of the great depression. Within the first three chapters alone Harper Lee make a great example of the struggles of money many families had and how it impacted even the children. In an early part of chapter two Scout says â€Å"Miss Caroline, he’sRead MoreWhy Is Innocence Becomes Experience?1225 Words   |  5 PagesIn To Kill A Mockingbird there are several reason why innocence becomes experience. Phys.com stated â€Å"Between ages 5 and 11, the researchers found, children become aware that many people believe stereotypes, including stereotypes about academic ability. When children become aware of these types of bias about their own racial or ethnic group, it can affect how they respond to everyday situations.† This shows that Scout and Jem are in a time of their lives when racism will take effect. Not only becauseRead MoreKill A Mockingbird By Harper Lee913 Words   |  4 PagesIn Defense of To Kill A Mockingbird Rough Draft To Kill a Mockingbird by Harper Lee has been banned and/or challenged over thirty times since its publication in 1960. Effectively preventing many students from enjoying the novel and benefitting from its message. To ignore racism is no different than denying it ever existed. To Kill a Mockingbird is appropriate for mature adolescence/students and should not be banned from schools. Despite its sexual related content, or profanity, a valuable lessonRead MoreAnalysis Of Harper Lee s Kill A Mockingbird 1491 Words   |  6 PagesHarper Lee’s ​ To Kill a Mockingbird ​ is a critically acclaimed, Pulitzer Prize winning novel that instantly attained its position as one of the greatest literary classics (Editors).The story of Scout Finch’s childhood has become one of the most notable narratives that addresses controversial issues present in the early 20th century. Lee’s novel depicts themes of race, justice, and innocence throughout the novel. Although ​ To Kill a Mockingbird​ is regarded as a literary masterpiece in AmericanRead MoreImpact Of Racism In To Kill A Mockingbird910 Words   |  4 PagesIn Harper Lee’s book â€Å"To Kill a Mockingbird† Jem , Scout , and Dill live in Maycomb , Alabama around the time of the 1930’s they all were struggling through racism and poor family’s trying to get by. Harper Lee’s first and only novel â€Å"To Kill A Mockingbird† was published during the civil right movements. In this book Jem, Scout, and Dill tend to have courage and loyalty through life and in their relationship toward one another . Jem and Scout are brother and sister, Dill is a friend of the familyRead More Racism in Literature Essay1144 Words   |  5 PagesRacism, a disease of the ignorant, is a horrific part of society, and has reared its ugly head throughout history, and is continuing to do the same today. Racism comes in many shapes and forms, directed towards a variation of cultures. It can end lives and tear communities apart. Often times, there are people who see racism, and are inspired to write about it, with the goal in mind to make a difference and change societies belief. Abel Meeropol and Harper Lee had that goal in common, when writing

Dell The Power Of Do More Essay - 1275 Words

â€Å"The power to do more.† That is exactly what Dell has been doing for the last 31 years. Dell was founded on February 1, 1984 by Michael S. Dell. Company headquarters is located in Round Rock, Texas where founder Michael Dell holds the position of CEO. The company primarily specializes and focuses on computer technology. In addition to computer technology, Dell also manufactures printers, tablets, and projectors. Over the past 31 years, Dell has taken a small company and grown it into one of the world’s number one computer systems manufacture. With such a huge company with business in over a dozen countries, Dell must find some way to keep it all together. (Company Heritage) In 1988, Dell brought its technology to the public. After four years of business the company began introducing its products to the general public worldwide. By 1991, the company’s international sales had doubled for the third year in a row. Dell began tapping into other aspects of the co mputer market in 2003 with the introduction of Dell printers. Twenty-one years after being founded, in 2005, Dell tops Fortunes â€Å"America’s Most Admired Companies† list. (Company Heritage) Dell runs much of its business internationally. In 1987, the company opened its first subsidiary in the United Kingdom. Several years later in 1993, Dell opened subsidiaries in both Australia and Japan. By 1999, Dell had manufactures in Ireland, China, Brazil, and the United States. The company also created customer support andShow MoreRelatedAnalysis Of Dell s Marketing Strategy1173 Words   |  5 Pagesdeveloped rapidly. With the entrance of Dell, the dynamic structure in the industry changed. Between 1994 and 1998, Dell s growth was twice as fast as its major rivals (IBM, Compaq, Gateway, and Hewlett-Packard). Dell provides high performance PCs at low prices. Its competitive advantage is mainly established by the innovation of the Direct Model and other firm level strategie s that enable Dell to utilize its resources and build up its capabilities more efficiently. 1. Industry Analysis throughRead MoreMatching Dell1226 Words   |  5 Pagesthreat of new competitors lowers the profitability of the market Customers bargaining power: It is very hard for the customers to join forces and fight for their interests. (2.1) According to the modern way of life the need for computer in every work place and home is high which decreases even more the power of the customers. However, the switching costs are low (2.2) In general the customer bargaining power is low and therefore it raises the potential of market s profitability. Though, mostRead MoreDells A Five Forces Analysis1283 Words   |  6 Pagesmajor strategies implemented by the company since then. Introduction Dell is an informatics company known for providing high-quality, low-cost technology, support and services. Despite 20+ years in the market, it is now struggling with the rise of tablets and other portable devices. â€Å"Dell’s stock price fell from $54 in 2000, to around $13.5 in 2013† (BBC 2013). On October 29th 2013, it went private (Hesseldahl 2013). Since, Dell has implemented strategies, expanding within the portable device marketRead MoreDells Sustainable Initiatives for the Environment and Human Health672 Words   |  3 Pagesthe environment and the people, while remaining profitable and Dell is not an exemption. However, a company must support this claims, and evaluating Dell with strategies using natural capitalism is a perfect way see how sustainable company is. Dells sustainability report is among the best in the business. The elements within their report include corporate accountability, environmental responsibility, and community engagement. Since Dells m ain product is computers this is the first step when it comesRead MoreDell : A Global Provider Of It Solutions And Services With Multiple Years950 Words   |  4 PagesDell has positioned itself as a global provider of IT solutions and services over multiple years. This branding has shown that it is not simply an attempt to distance itself from the profitable but low-margin PC business, but instead, that it is a very real transition for both Dell as a company and the IT landscape, in which Dell operates. The current increase in cloud computing, big data, and connected devices, information technology is becoming more vital to the survival of business service sectorsRead MoreEssay on Dell Analysis1400 Words   |  6 PagesDell Analysis In spite of Dell’s Direct Model strategy, the company had lost any price advantage it had over its competitors. Dell also had an issue with channel inventory availability driven by the fact that their competitors were attempting to replicate their strategy. This was a large threat to the organization because they so heavily relied on just-in-time delivery of parts. Dell’s competitors faced many challenges to the direct distribution method, however. According to Exhibit 8 in theRead MoreGlobal Computer Hardware Manufacturing Industry1603 Words   |  7 Pages TREATS Increase in competition– Currently Dell Wyse cloud connect does not have many direct competitors. Although it competes with traditional desktops and portable computers, there are not many companies that produce ultra-small, portable high definition and secure desktop on cloud access devices. A major treat for the company is that more players might enter the industry with similar products which could lead to further price competition forcing companies to lower their costs which wouldRead MoreDell Case Assessment : Dell1105 Words   |  5 PagesDell Case assessment Introduction Dell is among the fastest growing companies in the IT world. Dell started out as a company manufacturing PC’s and slowly developed as a big giant in IT industry. Today, Dell has an IT division which takes care of the cyber security called Dell Secure works. Dell designs, develops, manufactures, services and supports a range of computer systems including, desktops, laptops and enterprise products. Dell went public in 1988, capitalization for Dell increased to $85Read MoreThe Dell Promotion and Price Paper1396 Words   |  6 PagesThe Dell Promotion and Price Paper Michael Kunkel University Of Phoenix MKT 421 Robert Walker 01/09/06 The Dell Promotion and Price Paper Promotion is the most important component in the 4 Ps, so understanding how to promote a product is crucial to any company. No company knows this better than The Dell Corporation. Dell uses many different promotional methods to get their computer products seen by their targeted consumer markets. In todays paper I am going to start off by discussing someRead MorePerceptual Mapping on Dell Computer996 Words   |  4 PagesDo you think Dell is well positioned with respect to its competitors? Not yet because Dell still left behind HP and IBM. People who want flexibility in their PCs tend to buy HP brand. For instance, HP Power Distribution Rack which controls three-phase power distribution across a row of server racks brings enhanced flexibility to IT personnel who are seeking to place power where it is needed, but without over provisioning or otherwise wasting the precious resource. In other hand people who want

Sophocles Oedipus Rex as Modern Tragedy Essay examples

Oedipus Rex and Tragedy Sophocles’ Oedipus Rex is, in short, the story of a man who unknowingly kills his father and marries his mother. It certainly sounds like a tragedy, doesn’t it? But the classification and definition of ‘tragedy’ are one of the many things widely disputed in the realm of literary studies. So, for the purposes here we’ll use Aristotle’s five criteria of a tragedy: a tragic hero of noble birth, a tragic flaw or mistake, a fall from grace, a moment of remorse, and catharsis. By any standard, Oedipus Rex clearly meets these five criteria. In The Poetics, Aristotle uses Oedipus to illustrate the ideal tragedy. Aristotle writes Oedipus is a model tragic hero because he is a man of high standing, but not†¦show more content†¦Ã¢â‚¬ËœHamartia’ is a tragic flaw, or literally in Greek a ‘mistake’, which accompanies the tragic hero but does not lead to the hero’s death. Oedipus’ tragic flaw was his pride, s elf-righteousness, and perhaps even his temper. He displays his temper when he kills Laios and all the travelers with him; â€Å"Swinging my club with this right hand I knocked him out of his car, and he rolled on the ground. I killed him. I killed them all.† His temper is also displayed when Teiresias reveals his fate and the answer to the question that he has posed to all of Thebes. â€Å"†¦Damnation Take you! Out of this place! Out of my sight!† Both of these examples can no doubt be classified under his pride as well, and perhaps even more pointedly because it is his pride that causes his temper; and, it is specifically his pride that ironically leads to his fulfilling the prophecy. His self righteousness is displayed most clearly by his desire to be a hero by vowing to find Lauis’ murderer, as mentioned above. In another stroke of irony, it is this self-righteous desire that leads to the awful realization of the prophecy’s fulfillment. The t hird criteria Aristotle uses is ‘Peripateia.’ Peripateia is the complete reversal of plot in relation to the tragic hero; or, in other words, a fall from grace. Oedipus starts out as the king of Thebes. In relation to peripateia, the only way that Oedipus can have a complete reversal is for him to go down hill in aShow MoreRelated Comparing A Dolls House and Oedipus Rex Essay1672 Words   |  7 PagesComparing A Dolls House and Oedipus Rex Ibsens drama A Dolls House, serves as an example of the kind of issue-based drama that distinguishes Ibsen from many of his contemporaries. The plays dialogue is not poetic, but very naturalistic, and the characters are recognizable people. Given the sense of modernity which the play possesses it seems unusual to compare it to a Greek tragedy produced more than two-thousand years previously. On closer examination however, thereRead MoreOedipus: Aristotelian or Formalist Theory772 Words   |  4 PagesTeiresias’s speech at the end of scene one of Sophocles’ play Oedipus Rex is fairly short but it is in this encounter between Oedipus and Teiresias where the main conflict of the story begins to unfold. This is a pivotal speech in the play as it helps to develop some of the major themes in the play as well as begin to build up the tragic irony at the center of the story. When this speech is analyzed using either Aristotelian or Formalist theory key elements can be found that are effective inRead MoreOedipus Rex As Modern Tragedy : Catharsis Or Cognitive Emotion883 Words   |  4 PagesOedipus Rex as Modern Tragedy: Catharsis or Cognitive Emotion Oedipus Rex, an Athenian tragedy written by Sophocles, tells the tale of a noble king brought low by a serious of harrowing events set in motion by the Gods and unwittingly furthered by the actions of the king. Aristotle believed that Oedipus Rex was the prime example of the tragedy; however, modern readers might entertain that the play is unworthy of such praise. In this paper I will put forth the argument that Oedipus Rex, though heartfeltRead MoreOedipus Rex As Tragedy : The Philosopher Must Be Crazy845 Words   |  4 PagesOedipus Rex as Tragedy: The Philosopher Must Be Crazy Throughout the ages many scholars have agreed with Aristotle s assessment of Oedipus Rex (the Athenian tragedy written by Sophocles) as the truest form of tragedy; however, modern viewers might remark that it is unworthy of such praise and instead should be exemplified as the proof that an addition to Aristotle s ideal of tragedy itself is required: the element of timelessness. Throughout history, many have believed that man s ability to produceRead MoreAnalysis of Oedipus As an Aristotelian Tragic Hero in Sophocles Oedipus Rex1799 Words   |  7 Pagesï » ¿Oedipus as an Aristotelian tragic hero Although one might be inclined to express uncertainty concerning the role of Sophocles Oedipus as a tragic hero (when regarding matters from a general point of view), the character perfectly fits Aristotles definition of a tragic hero. The protagonist in Oedipus Rex is noble and can be appreciated for his greatness, considering that he embodies a series of virtuous attributes. Even with this, he is not perfect and thus makes it possible for readers toRead More tragoed Oedipus the King (Oedipus Rex) as Ideal Tragic Hero1245 Words   |  5 PagesOedipus Rex as the Ideal Tragic Hero If we give ourselves up to a full sympathy with the hero, there is no question that the Oedipus Rex fulfills the function of a tragedy, and arouses fear and pity in the highest degree. But the modern reader, coming to the classic drama not entirely for the purpose of enjoyment, will not always surrender himself to the emotional effect. He is apt to worry about Greek fatalism and the justice of the downfall of Oedipus, and, finding no satisfactory solutionRead MoreComparing Oedipus Rex And Death Of A Salesman By Arthur Miller1255 Words   |  6 Pagesa. Tragedy†¦ we all will go through this at least once in our lifetime. It is inevitable. It has been around since the beginning of time. The ancient Greek’s used it in a manner in which we still use it today in Modern times. b. Today I will be comparing the two works such as Oedipus Rex, which is a playwright written by the great Sophocles and another playwright named Death Of A Salesman written by Arthur Miller. c. Through out the years, there has been a lot of controversy on whether or not DeathRead MoreAn Analysis and Comparison of Modern Tragedy in Drama1485 Words   |  6 PagesAristotle thoroughly describes his understanding of the tragedy in the Poetics and bases this conception on certain requirements. According to Aristotle the three most important variables that define a tragedy are plot, characters, and theme. Using Oedipus Rex as a sort of ideal, this philosopher demonstrates how a tragedy functions in order to evoke catharsis while exploring themes and human flaws, or mistakes. In Oedipus Rex, the main figure, Oedipus the King is a subject of fate, unable to escape himselfRead MoreTragedy and Comedy Essay1248 Words   |  5 Pageseffect. Tragedy, represented by the weeping actors’ mask, usually features the title character’s fall from greatness to ruin, guided by the gods or fate. Oedipus Rex, written by Sophocles, is the epitome of classic Tragedy, as defined by Aristotle (96-101). Here, Oedipus falls from kingship to blindness and exile. Drama’s other great genre, Comedy, is represented by the laughing actors’ mask. In Comedy the action is usually propelled by a problem or crisis of some sorts, but unlike tragedy it usuallyRead MoreA Dolls House As A Tragic Hero Analysis967 Words   |  4 Pagesthe depths of misery and often to his death† (Ingham 1). Within Oedipus Rex, Sophocles laid the foundation for what is now considered the ideal tragic hero. Within A Doll’s House, Ibsen creates a modern hero in Nora Helmer; a woman who was oppressed for going against social rules for saving her husband. Nora follows the Aristotelian journey of a tragic hero, from hamartia through her tragic fall into catharsis. She is considered a modern day heroine, but critics argue that Nora does not represent the

Indistinguishability Obfuscation and Functional †MyAssignmenthelp

Question: Discuss about the Indistinguishability Obfuscation and Functional. Answer: Introduction: In this book, Bronk and Tikk-Ringas have discussed about the several security issues for the information technology organizations. The author has created this book on the basis of several researches on the information security of different organizations. Author has done the research on risk analysis and the possible threats for an organization. The main reasons behind the risks are also given in the book and the ways for overcoming the risk factors are also discussed in details. Risks are classified in different sections with respect to the occurrence and those can be internal or external risks. Sometimes the risks are also increasing continuously as they are created deliberately to make the organizations computing system more vulnerable. This work is very useful on risk management for several information technology organizations. The limitations of the small organizations on installing the software are also discussed as those are in terms of huge cost and expenditure. In this book, Ben-Asher and Gonzalez have discussed about the security issues related to the information technology. The authors have found the information regarding the topic on the basis of several research works and practical cases in which organization have faced different cyber attacks. As the role of information technology is becoming more important in case of providing services to the people, the number of cyber attacks is also increasing with respect to time. There are many examples of cyber attacks in the organizations. The main cyber attacks are generated by the hackers. Several viruses and malware are also responsible for creating several cyber threats to the computer and network system. Due to several attacks of the viruses the public information can be really in danger. Also the main disadvantages regarding the cyber attack are given in terms of making the system more vulnerable. The acknowledgement about the risk factors will help to understand the possible harms of the information technology system. In this book, Raiyn has written about several strategies which are successfully used to detect the cyber attack in the organizations dealing with cyber security. The author has written the book on the basis of his research work based on several case studies and the regulations and standards given by several international organizations and governments. The organizations should follow the regulations and the standards which are discussed in the book to overcome all the possible risk factors and threats. With the advancement of internet and information technology the amount of online services are increasing day by day. To maintain the security of the organization and public information in case of several transactions, the regulations should be followed carefully. It is also seen that the organizations have been benefited in increasing the customer satisfaction and reliability by implementing the standards, regulations discussed in the book and these are more effective against cyber atta cks. In this book, Franke and Brynielsson have demonstrated about the various cyber situational awareness programs which can be designed and applied in case of maintaining the security of the organization. Author has got the idea about it by doing many researches on the practical cases related to the cyber security of the systems and also the reasons for the attacks. Many cyber security issues are foun d due to the attacks on the network system of the computing system.The main advantage of making the system more advanced in network system is that the organizations can be sure about the security of their system. Viruses and malwares are shared and distributed in the network system very easily so that the system can become malicious. There are many network systems which can be utilized to increase the security of the system and those are IPV4 and IPV6 network protocols. There are also many records of the network systems which are found to be more advanced in terms of security for the comput er system used in several organizations. In this book, Von Solms and Van Niekerk have discussed about the transformation and the expansion of the cyber security system from the information security system. Author has collected the information from various case studies and also different research works related to the cyber security. In case of information technology several techniques are usqed like encryption. In modern days the hackers are not only making target to the information but also to the servers and organizational database. Hackers are also attacking common peoples computers to get more resources from them. Different protocols and standards are maintained in order to make the security system more advanced for the reliability. SSL technology is used for the security of the computer system. It helps to oppose the security issues related to the software as well as physical parts of the computer system from the attack of malicious software. In recent days the cyber security has created a lot of features which were not present in case of information security. In this book, Daemaen and Rijmen have discussed about the encryption technology on the basis of the security aspects of the organizations dealing with a large amount of information. The authors have created this book by doing studies on various research works and also from many practical cases. To increase the security in the computer system it is very important to make sure about the security of the data as it is of very confidential nature. Encryption is a method by which the information is converted into codes which cannot be read by the unwanted people who cannot decrypt the codes without the permission from the encoder of the information. Encryption was previously used in war to transfer data in a coded language. The main advantage of making the system more advanced about the security is to make all the information well encrypted. It is seen in many cases that several data loss have been reported due to the advancement of the encryption technology. In this book, Rittinghouse and Ransome have discussed about the security aspects related to the cloud computing of an organization dealing with information technology. Authors have found the information from several research works and practical case studies. The main advantage of cloud computing is that the huge processing power of the cloud is shared among various computers of the organizations and also the main advantage of implementing the cloud computing is that it can make the system more advanced in decision making and data analysis. It is seen that in many computing system the application of the cloud computers are being done to overcome the security related issues related to the organizations. Due to the use of the cloud, computing software is more advanced in tacking the malware and the virus in the main computing system. The main effect of the security aspects related to the cloud computing can be utilized in a greater margin. In this book, Andress has discussed about the security policies in an organization which are responsible for the internal information security of the organisation. The author has created this book on the basis of several researches on the information security of different organizations. Author has done the research on risk analysis and the possible threats for an organization. The main reasons behind the risks are also given in the book and the ways for overcoming the risk factors are also discussed in details. In many cases it is seen that the organizations have faced a lot of cases where the employees have deliberately created a lot of issues regarding the information security of the organization. There are also many cases have been found in which people have violated the laws related to the organizational security for their own interests and also they have created real threats to the organization. As a result the organizations have created many new regulations which are important for the betterment of the organizational security. In this article, Almorsy, Grundy and Muller have discussed about the security features provided by the cloud platform for increasing the security of the organizations and also its implementations in new technologies like smart grids. Authors have found the information from several research works and practical case studies. The main advantage of cloud computing is that the huge processing power of the cloud is shared among various computers of the organizations and also the main advantage of implementing the cloud computing is that it can make the system more advanced in decision making and data analysis. It is seen that in many computing system the application of the cloud computers are being done to overcome the security related issues related to the organizations. Due to the use of the cloud, computing software is more advanced in tacking the malware and the virus in the main computing system. Cloud computing provides a centralized processing unit and for this reason organizations do not need to rely upon other sources which can create threats to their computer system. In this article, Ksheri has discussed about the security of the organizations on the basis of the application of big data. The author has collected the information from various research works and from several case studies. The big data analysis is important for the advancement of the security system. Organizations which deal with a large amount of information need the analytical help of big data so that the security of the organization is maintained. Big data also uses various approaches like statistical and analytical approaches so that the data can be used with more compact and faster response. For dealing with the increasing requirements from customers big data helps a lot to ensure the effectiveness of the functioning of the information. The main reasons behind the risks are also given in the book and the ways for overcoming the risk factors are also discussed in details. Risks are classified in different sections with respect to the occurrence and those can be internal or extern al risks. Sometimes the risks are also increasing continuously as they are created deliberately to make the organizations computing system more vulnerable. This work is very useful on risk management for several information technology organizations. Big data takes an important role in risk management also by several analytical methods. References: Bronk, C., Tikk-Ringas, E. (2013). The cyber attack on Saudi Aramco. Survival, 55(2), 81-96. Ben-Asher, N., Gonzalez, C. (2015). Effects of cyber security knowledge on attack detection. Computers in Human Behavior, 48, 51-61. Raiyn, J. (2014). A survey of cyber attack detection strategies. International Journal of Security and Its Applications, 8(1), 247-256. Franke, U., Brynielsson, J. (2014). Cyber situational awarenessa systematic review of the literature. Computers Security, 46, 18-31. Von Solms, R., Van Niekerk, J. (2013). From information security to cyber security. computers security, 38, 97-102. Garg, S., Gentry, C., Halevi, S., Raykova, M., Sahai, A., Waters, B. (2016). Candidate indistinguishability obfuscation and functional encryption for all circuits. SIAM Journal on Computing, 45(3), 882-929. Ali, M., Khan, S. U., Vasilakos, A. V. (2015). Security in cloud computing: Opportunities and challenges. Information Sciences, 305, 357-383. Siponen, M., Mahmood, M. A., Pahnila, S. (2014). Employees adherence to information security policies: An exploratory field study. Information management, 51(2), 217-224. Bera, S., Misra, S., Rodrigues, J. J. (2015). Cloud computing applications for smart grid: A survey. IEEE Transactions on Parallel and Distributed Systems, 26(5), 1477-1494. Kshetri, N. (2014). Big data? s impact on privacy, security and consumer welfare. Telecommunications Policy, 38(11), 1134-1145.