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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 4
 12
 6
 8

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 2.
 4.
 6.
 3.

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Register
Gate
Decoder
Mux

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Microprocessor
The operating modes of 8255 A are called

Mode 0, mode 1 and mode 2
Mode 0, mode 2 and mode 3
Mode 0 and mode 1
Mode 0 and mode 2

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Microprocessor
Which of the data transfer is not possible in microprocessor

 memory to memory
 memory to accumulator
 I/O device to accumulator
 accumulator to memory

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

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

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