• Cadenti
  logic family
  medium scale integration
  metal oxide semiconductor
  ac register
  accumulator logic
  adder circuit
  basic computer design
  branch unconditionally
  flowchart
  input and output communication
  input output instruction
  input register
  interrupt cycle
  logic adder circuits
  logic gates
  output register
  register and memory
  binary code
  binary number
  clock pulse
  data types
  decimal numbers
  

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The hardware of the computer is usually divided into three major parts, as shown in Fig. 1-1. The central processing unit (CPU) contains an arithmetic and logic unit for manipulating data, a number of registers for storing data, and control circuits for fetching and executing instructions. The memory of a computer contains storage for instructions and data. It is called a randomaccess memory (RAM) because the CPU can access any location in memory at random and retrieve the binary information within a fixed interval of time. The input and output processor (IOP) contains electronic circuits for communicating and controlling the transfer of information between the computer and the outside world. The input and output devices connected to the computer include keyboards, printers, terminals, magnetic disk drives, and other communication devices.

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