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Microprocessor

Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 1 K bytes
 4 K bytes
 8 K bytes
 10 K bytes

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 D-E.
 Program Counter.
 Stack Pointer.
 H-L.

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Clock cycle
 Memory cycle
 Machine cycle
 Instruction cycle

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Microprocessor
During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction.

 Bus Interface Unit (BIU)
 None of these
 Both ‘c’ and ‘d’
 Execution Unit (EU)

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Microprocessor
DMA is used between

 memory and I/O
 microprocessor and I/O
 none
 microprocessor and memory

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Microprocessor
In a computer the data transfer between hard disk and CPU is nearly the same as that between diskette and CPU.

True
False

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