iformation about computer

fadi arafat
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computer hardware

defintion of hardware:

refers to phyiscal equipment used for the input,processing ,output,and storage activities of acomputer system

the hardware consist of the following :

  1. cental processing unit
  2. memory
    1. primary storage
    2. secondary storage
  3. input technologies
  4. output technologies
  5. communication technologies

computer hierarchy

computing devices

input technologies
such as keyboard,mice,joy stick
output technologies
such as monitor,printer,plotters
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