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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 12
 8
 6
 4

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Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 220-1
 20
 220
 220 - 1

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Microprocessor
Of the following circuits, the one which involves storage is

Mux
Nand
RS Latch
Decoder

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is negated, S is asserted
R is asserted, S is asserted
R is asserted, S is negated
R is negated, S is negated

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Microprocessor
The data bus of any microprocessor is always

 Unidirectional
 Either unidirectional or bi-directional
 Bi-directional
 None

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Microprocessor
DMA signal/signals in 8085 is/are

 READY.
 HOLD.
 HLDA.
 All.

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