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Microprocessor

Microprocessor
Register pair used to indicate memory

 W and Z
 B and C
 D and E
 H and L

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Microprocessor
The number of output pins in 8085 microprocessors are

 21.
 19.
 40.
 27.

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Microprocessor
DMA signal/signals in 8085 is/are

 All.
 READY.
 HLDA.
 HOLD.

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Microprocessor
The clock speed of 8085 is

 1MHz.
 1KHz.
 3.2KHz.
 3.2MHz.

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Microprocessor
RST0 - RST7 are the __________ in 8085.

 conditional interrupts
 logical interrupts
 software interrupts
 hardware interrupts

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Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

 RST 5.5
 both ‘a’ and ‘b’
 TRAP
 RST 6.5

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