Computer System (Objective Type Question for Competitive Exams)
Computer System
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Q.1 The heart of any computer is the….
(A) CPU
(B) Memory
(C) I/O Unit
(D) Disks
Ans . A
Q.2 A Computer consists of……
(A) a central processing unit
(B) a memory
(C) input and output units
(D) all of these
Ans . D
Q.3 Which of the following is not used as secondary storage?
(A) semiconductor memory
(B) magnetic disks
(C) magnetic drums
(D) magnetic tapes
Ans . A
Q.4 Which of the following memory is capable of operating at electronics speed?
(A) semiconductor memory
(B) magnetic disks
(C) magnetic drums
(D) magnetic tapes
Ans . A
Q.5 Which of the following is responsible for co-ordination various operations using timing signals?
(A) arithmetic logic unit
(B) control unit
(C) memory unit
(D) input/output unit
Ans . B
Q.6 Memories in which any location can be reached in a fixed (and short) amount of time after specifying its address is called.
(A) sequential access memory
(B) random access memory
(C) secondary memory
(D) mass storage
Ans . B
Q.7 Which of the following is the fastest?
(A) CPU
(B) magnetic tapes and disks
(C) video terminal
(D) sensors, mechanical controllers
Ans . A
Q.8 The register which contains the instruction that is to executed is called.
(A) index register
(B) instruction registers
(C) memory address register
(D) memory data register
Ans . B
Q.9 The register which keeps track of the execution of a program and which contains memory address of the instruction currently being executed is called.
(A) index register
(B) memory address register
(C) program counter
(D) instruction registers
Ans . C
Q.10 Register which holds the address of the location to or from which data are to be transferred is called.
(A) index register
(B) instruction registers
(C) memory address resister
(D) memory data register
Ans . C
Computer System
Q.11 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
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Q.12 A collection of wires that connects several devices is called.
(A) link
(B) bus
(C) bidirectional wires
(D) cables
Ans . B
Q.13 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.14 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.15 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.16 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.17 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.18 Micro programming is designing of…
(A) ALU
(B) CPU
(C) ROM
(D) Control unit
Ans . D
Q.19 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.20 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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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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