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Microprocessor

Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 8
 18
 16
 12

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 6.
 2.
 3.
 4.

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Microprocessor
Which of the following is not a general purpose peripheral?

Programmable CRT controller
Programmable interval timer
I/O port
Programmable interrupt controller

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Microprocessor
‘Burst refresh’ in DRAM is also called

Concentrated refresh
Distributed refresh
None of these
Hidden refresh

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Microprocessor
Identify the programmable DMA controller from the following

 8279
 8251
 8253
 8257

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Microprocessor
Which of the following instruction is not possible in 8085?

 POP D
 POP PSW
 POP B
 POP 30 H

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