Book: 1st Year Introduction to Computer KPK mcqs

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#71 which of the following steps in the instruction cycle interprets the instruction?

A)   Fetch
B)   Decode
C)   Execute
D)   Write-back
Answer:   B


#72 __________ instruction is used when number of statements is to be repeated.

A)   LD
B)   LOOP
C)   JMP
D)   MOV
Answer:   B


#73 _________ is a microprocessor architecture that is designed to perform a small number of computer instructions.

A)   RISK
B)   CISC
C)   DISK
D)   LIST
Answer:   A


#74 How many op-codes do a zero-Address instruction has?

A)   1
B)   2
C)   3
D)   0
Answer:   A


#75 which of the following is not arithmetic instruction?

A)   DIV
B)   MUL
C)   SUB
D)   JMP
Answer:   D


#76 ________ changes alternating current (AC) to low-voltage direct current (DC) to operate the processor and peripheral devices.

A)   Motherboard
B)   Power supply
C)   Output unit
D)   Register
Answer:   B


#77 which of the following is the firmware built into the computer system ?

A)   Slot
B)   RAM
C)   Port
D)   BIOS
Answer:   D


#78 ___________ are the opening or sockets in a computer motherboard where a circuit board or expansion card can be inserted to add new functionalities to the computer.

A)   BIOS
B)   Ports
C)   Power supplies
D)   Expansion slots
Answer:   D



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