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Microprocessor

Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 68000
 6502
 8085
 Z-80

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Microprocessor
The word size of 8085 microprocessor is

 4-bit
 16-bit
 20-bit
 8-bit

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Microprocessor
Temporary registers in 8085 are

 D and E.
 B and C.
 H and L.
 W and Z.

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Microprocessor
S0 and S1 pins are used for

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

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Microprocessor
An I/O processor controls the flow of information between

Two I/O devices
Cache memory and I/O devices
Cache and main memory
Main memory and I/O devices

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Microprocessor
SUB A instruction in 8085

 sets zero and sign flags
 sets zero and carry flags
 reset zero and parity flags
 reset carry and sign flags

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