Page 10 - PlugGPT_V2.0_C3_Flipbook
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Some of the input devices are keyboard, mouse and scanner.
Keyboard Mouse Scanner
Process
The computer takes action on the data entered
by the user. It converts the data into meaningful
information with the help of the processor which is
the CPU (Central Processing Unit). This conversion
of data into information is called processing. CPU
is also called the brain of the computer. It has three
parts: CPU
CPU box
Arithmetic Logic Unit (ALU)
The ALU does arithmetic calculations like addition, subtraction, multiplication,
division and so on. It also does comparisons like greater than, lesser than, equal to
and so on.
Memory Unit (MU)
The MU stores data and instructions given to the computer and the result of the
processing.
Control Unit (CU)
The CU coordinates between all the parts of the CPU. The CU gets data and
instructions from the memory unit and passes them on to the ALU in a step by
step manner.
Output
The result which we get after processing the data and instructions is called output.
The output which is displayed on the screen of a monitor is called the soft copy. A
printout of the soft copy on paper is called the hard copy.
8 Premium Edition-III

