A directory of Objective Type Questions covering all the Computer Science subjects. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews.

81. I/O instruction Control is used to activate an
a. Interrupt driven I/O
b. Internal device
c. External device
d. I/O devices
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Answer: (c).External device

82. I/O modules performs the requested action on
a. Programmed I/O
b. Direct Memory Access (DMA)
c. Interrupt driven I/O
d. I/O devices
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Answer: (a).Programmed I/O

83. Control and Status registers used by the processor to control
a. Design of the Processor
b. Operation of the Processor
c. Speed of the Processor
d. Execution of the Processor
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Answer: (b).Operation of the Processor

84. I/O instruction Transfer used to read the
a. Data
b. Information
c. Instructions
d. Description
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Answer: (a).Data

85. Stack pointer is a register that points to the
a. Pop the stack
b. Push the stack
c. Top of the stack
d. Bottom of the stack
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Answer: (c).Top of the stack

86. Cache size issue can have significant impact on
a. input
b. output
c. Information
d. Performance
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Answer: (d).Performance

87. Direct memory access is more efficient to move
a. Less Data
b. Large Data
c. Largest Data
d. Low Data
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Answer: (b).Large Data

88. In data processing, processor perform some
a. Arithmetic or logic operation on information
b. Arithmetic or logic operation on instruction
c. Arithmetic or logic operation on programs
d. Arithmetic or logic operation on data
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Answer: (d).Arithmetic or logic operation on data

89. I/O instruction Status tests various
a. Control Conditions
b. Status conditions
c. I/O device
d. Memory
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Answer: (b).Status conditions

90. The processor fetches an instruction from
a. Keyboard
b. Monitor
c. CPU
d. Memory
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Answer: (d).Memory