Exercise: Microprocessors

Questions for: Microprocessors

Which of the following is not a special purpose peripheral?
A:
Programmable DMA controller
B:
Programmable Floppy disc controller
C:
Programmable Hard disc controller
D:
Programmable CRT controller
Answer: A
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Assertion (A): In 8085, P flag is for parity checking.

Reason (R): If the result of ALU has even parity, P flag is set and if the result has odd parity, P flag is reset.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R are correct but R is not correct explanation of A
C:
A is correct R is wrong
D:
A is wrong R is correct
Answer: A
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Microprocessor 8088 has
A:
16 bit registers and 16 bit data bus
B:
8 bit registers and 8 bit data bus
C:
8 bit registers and 16 bit data bus
D:
16 bit registers and 8 bit data bus
Answer: D
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In windows the middle button of mouse is not used.
A:
True
B:
False
C:
D:
Answer: A
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The word size accessible at a time from the memory subsystem depends on
A:
width of data bus
B:
width of address bus
C:
width of control bus
D:
both (b) and (c)
Answer: A
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