Exercise: Computer Fundamentals

Questions for: Computer Fundamentals

In which of the following terminals the screen is regarded as an array of pixels, where each pixel is either on or off?
A:
Character map terminal
B:
Bit map terminal
C:
RS-232 C terminal
D:
All of the above
Answer: B
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Control of computer system or subsystem operation by an operator who may intervene at arbitrary times is
A:
Manual control
B:
Mapping
C:
Shift register
D:
ALU
Answer: A
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The data bus in 8080A/8085 microprocessor is a group of
A:
eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory
B:
sixteen bidirectional lines that are used for data transfer between the microprocessor and memory
C:
eight unidirectional lines that are used for I/O devices
D:
eight lines used to transfer data among the registers
Answer: A
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A file that includes an index directory to facilitate random access is
A:
Sequential file
B:
Indexed file
C:
Random file
D:
Serial file
Answer: B
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A computer performs operations by comparing data items and then, depending on the results, follows predetermined course of action. What are such operations called?
A:
Sequential
B:
Logical
C:
Digital
D:
Physical
Answer: B
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