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
Q.62 A collection of wires that connects several devices is called.
(A) link
(B) bus
(C) bidirectional wires
(D) cables
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
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
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
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
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
Q.68 Micro programming is designing of…
(A) ALU
(B) CPU
(C) ROM
(D) Control unit
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
Q.70 How many units in a single bus structure communicate at a time.
(A) one
(B) two
(C) three
(D) four
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