Introduction of Computer
Parts of Computer
Computer has become many types of parts like-MOUSE,KEY-BOARD,MONITOR etc.
Data flow in computer
when user gives input to computer so after giving input computer process data and after that gives output.
1- Input Unit-
When user gives command to computer for processing data calls input.OR
when user gives any instruction by keyboard to computer calls input unit.Types of Input devices-Keyboard,Mouse Scanner light pen,track Ball,Digital Tablet,OMR,OCR ,MICR etc.
2-CPU(Central Processing Unit)
CPU is a main part of computer.CPU also call as brain of computer.when user input data in computer so CPU process the data and gives output.CPU has three parts-
a)Main Memory-
When user input the data in computer so before processing data stores in main memory.b) Arithmetic Logic Unit(ALU)-
In this part every type of calculation(Addition,Substraction,Multiplication,Division) by ALU.C)Control Unit-
Control unit give command to computer for working.3-Output Unit-
After processing data by CPU computer gives result it calls output.Output shows in computer screen(Monitor)which can read.
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