Computer System Overview Questions and Answers for Competitive Exams
Computer System Overview Questions and Answers:
Q.61 If some device requires urgent service normal execution of programs may sometimes be preempted using.
(A) an interrupt signals
(B) a request to memory modules
(C) DMA
(D) all of these
Ans . A
Q.62 A collection of wires that connects several devices is called.
(A) link
(B) bus
(C) bidirectional wires
(D) cables
Ans . B
Q.63 The input unit of a computer.
(A) feeds data to the CPU or memory
(B) retrieves data from CPU
(C) directs all other units
(D) all of these
Ans . A
Q.64 The register or main memory location which contains effective address of the operand is called.
(A) pointer
(B) indexed register
(C) special location
(D) scratch pad
Ans . A
Q.65 Offline device is a/an.
(A) device which is not connected to CPU
(B) device which is connected to CPU
(C) direct access storage device
(D) I/O device
Ans . A
Q.66 A device or peripheral equipment which is not in direct communication with CPU of a computer.
(A) on line device
(B) off line device
(C) channel
(D) intelligent terminal
Ans . B
Q.67 A storage device used to compensate the differences is flow of data is called.
(A) main storage
(B) auxiliary storage
(C) buffer
(D) core memory
Ans . C
Q.68 Micro programming is designing of…
(A) ALU
(B) CPU
(C) ROM
(D) Control unit
Ans . D
Q.69 Which of the following is a set of general purpose internal registers?
(A) Stack
(B) Scratch pad
(C) Address register
(D) Status register
Ans . B
Q.70 How many units in a single bus structure communicate at a time.
(A) one
(B) two
(C) three
(D) four
Ans . B
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