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Microprocessor

Microprocessor
DMA signal/signals in 8085 is/are

 HOLD.
 HLDA.
 All.
 READY.

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Microprocessor
S0 and S1 pins are used for

 serial communication
 indicating the processor’s status
None of these
 acknowledging the interrupt

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 POP PSW
 PUSH A
 PUSH SP
 PUSH PSW

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Microprocessor
The first microprocessor to include virtual memory in the intel microprocessor family is

 Pentium
 80486
 80286
 80386

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

+0
-1
-0
1

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 1280ns
 960ns
 320ns
 640ns

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