Which of the following is used as a primary storage device ?

A) Magnetic drum
B) Hard Disks
C) Floppy
D) All of above

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Mnemonic a memory trick is used in which of the following language ?

A) Machine language
B) Assembly language
C) High level language
D) None of above

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The brain of any computer system is

A) ALU
B) Memory
C) CPU
D) Control unit

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Each set of Napier’s bones consisted of ______ rods.

A) 5
B) 9
C) 11
D) 13

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Instructions and memory address are represented by

A) Character code
B) Binary codes
C) Binary word
D) Parity bit

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