Book: 1st Year Introduction to Computer KPK mcqs

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#61 Where are the logical operations performed in the CPU?

A)   CU
B)   Registers
C)   ALU
D)   Memory
Answer:   C


#62 __________ is a small memory device available in the CPU to store data temporarily.

A)   CU
B)   Register
C)   ALU
D)   memory
Answer:   B


#63 ________ is the small amount memory located between main memory and processor .

A)   RAM
B)   ROM
C)   Cache
D)   PROM
Answer:   C


#64 which of the following cache memories resides inside the microprocessor and is very fast from the other memories ?

A)   L1 cache
B)   L2 cache
C)   L3 cache
D)   L4 cache
Answer:   A


#65 _________ Register can perform arithmetic and data movement and it has some special addressing abilities.

A)   Base register
B)   Memory buffer register
C)   Data register
D)   Counter register
Answer:   A


#66 which of the following register has a special role in multiply and divide operations ?

A)   Base register
B)   Memory buffer register
C)   Data register
D)   Counter register
Answer:   A


#67 ________ Register holds either the address of the instruction being executed or the address of the next instruction to be executed .

A)   Program counter
B)   Memory buffer register
C)   Data register
D)   Counter register
Answer:   A


#68 System bus connects the central processing unit to ___________ on the motherboard .

A)   Register
B)   Main memory
C)   ALU
D)   Input unit
Answer:   B



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