BLOCK DIAGRAM OF COMPUTER SYSTEMS [COMPUTER SCIENCE] [SCIENCE TUTOR]

BLOCK DIAGRAM OF COMPUTER SYSTEMS:

INPUT DEVICES: 

   Input devices are used to enter the data and instructions into the computer. In addition it convert the entered data in computer acceptable form.

SOME COMMONLY USED INPUT DEVICES:
   1. Keyboard
   2. Mouse
   3. Scanner
   4. Light Pen.

OUTPUT DEVICES: 

   Output devices is used to display the results to user. In addition first it convert the generated result in user acceptable form.

SOME COMMONLY USED OUTPUT DEVICES:
   1. Monitor
   2. Printer
   3. Projector.

CPU (CENTRAL PROCESSING UNIT): 

   Central Processing Unit is used to perform all processing work of computer and controls all the parts of computer system.

C.P.U. IS DEVIDED IN THESE PART:
   1. ALU (Arithmatic & Logic Unit)

   2. Control Unit.

   3. Memory Unit.

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