Hiring Police Academy Essay Example | Topics and Well Written Essays - 750 words

Hiring Police Academy - Essay Example Here, it is the danger that creates a bond among all the officers alike because there are no barriers of race or class. At the Academy, they live as one great community by overcoming racial and caste differences while sharing rich experiences. The job of police personnel in the Academy is unique because it gives them an identity of great importance. Training at the Police Academy though strenuous, does give one the impression that it is a very well – disciplined organization that transforms its recruits into highly trained professionals. Trainees learn the different military commands and violations are strictly punished while efficiency is well rewarded. Trainees do not possess police powers nor are they allowed possession of a gun, but after their training they are allowed to do these things. Ethics (chap.5) by Crank and Caldero (2004) is one of the most important and popular subjects in the criminal justice system which goes to prove that ethical values have to be inculcated into police officers regime for more favorable and respectable outcomes. Screening recruits on the basis of knowledge and values has become a priority when choosing people before imparting training. Pre- hiring procedures include Knowledge testing, physical fitness and agility, background, psychological testing besides a polygraph and oral interview.

Computer Architecture Essay Example | Topics and Well Written Essays - 1000 words

Computer Architecture - Essay Example Von Neumann Architecture Von Neumann’s ideas are significant as they inspired the making of EDVAC computer back in 1952. The construction of Manchester Mark I computer preceded that of EDVAC. To Von Neumann, an efficient electronic computer would contain four main elements. These are the arithmetic logic unit, control unit, memory and input-output devices. In his architecture, Von Neumann moved if an efficient general purpose computer was to be made it is imperative to give it exemplary ability to store data and the intermediate outcomes of computation. On top of this, it is important to enable the computer to keep the instructions and commands given in carrying out whatever computation (Cragon, 2000). To achieve this, Von Neumann proposed that it is necessary to encode computer instructions in numeric form and enable the computer to store these instructions and their data in the same memory. The control unit help execute coded instructions saved in computer memory. Arithmetic unit performs arbitrary subsets of certain arithmetic operations. Von Neumann argued that operation speed, cheapness and simplicity of a machine should determine the economy of the arithmetic unit. Arithmetic unit accesses information from registers so as to be able to manipulate values. Data and program code reside in a computer’s memory. Input and output are enables a computer to communicate with the outside environment. Today’s input and output functions have improved on Von Neumann’s ideas and some take place within the computer (Null & Lobur, 2012). System bus There are wires found in the main board. It is these wires that interlink chips and devices plugged in the mainboard. The bus is the collectivity of these wires. The width of the bus goes with the number of wires. Data bus almost always contains wires in multiples of eight. Besides data wires, there are additional wires that help the computer in signaling and control. Bus throughput capability is the product of the speed of the bus clock (hertz) and the width of the bus (bits). Devices connected to the mainboard communicate via the bus. Bus arbitration is the method used to adjudicate the chance for each device to get access to the bus. Devices of high priority including processor and RAM get preference in accessing the bus (Cragon, 2000). These high priority devices have few interrupts. The control channel signals interrupts. Interrupt signals help interrupt CPU’s tasks in order to attention to whatever event that may occur. The CPU handles interrupt requests with respect to priority of their device. High priority devices have low interrupt numbers. In the past, bus arbitration has advanced over the years so that the computer does not need to arbitrate the bus. Direct memory access allows devices to insert or get data into or out of computer memory. The system bus has several functions. All types of buses allow sharing of data amongst the peripherals connected to the co mputer (Null & Lobur, 2012). System bus helps in addressing. Addressing helps in sending data to and from particular memory sections. System bus supplies power to different computer peripherals. It is the work of the bus to provide system clock that helps in synchronizing computer peripherals with other elements in the system. The use of Boolean operators in computer-based calculations Boolean operators can be used in the