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WAEC COMPUTER STUDIES THEORY AND OBJECTIVES ANSWERS

By | On April 11, 2018 (7 months ago)

Computer
COMPUTER OBJ 
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 theory ✅✅✅✅✅

1ai)
Computer system is a connection of electro-mechanical devices that link together forming a system inorder to perform automatic data processing (EDP)using software

1aii)
Major Component of computer
i)Central processing unit(CPU)

ii)Input unit

iii)Output unit

iv)storage unit

=========

*1bi)*
i)Collection

ii)conversion

iii)Manipulation

==============
(1bii)
i)EDSAC:

Electronic Delay storage Automatic Calculator
ii)EDVAC:

Electronic discrete Variable Automatic computer

2a)
Register is one of a small set of data holding places that are part of a computer processor. it hold computer instruction , a storage address , or any kind of data (such as a bit sequence or individual character).

2b)
i)memory address register(Mar)

ii)program counter

iii)Accumulator Register(AC)

iv)Memory data Register(MDR)

2c)
i)Register is used to quickly accept , store and transfer data and instructions that are being used immediately by the CPU
ii)Register is used for storing the results that are produced by the system
iii)MDR is the register of a computer’s control unit that contains the data to be stored in the computer storage or the data after a fetch from the computer storage

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