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Microprocessor

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

 68000
 Z-80
 8085
 6502

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

 4.
 3.
 2.
 6.

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Microprocessor
IC 7485 cannot be cascadeD.

False
True

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Microprocessor
In 8085 microprocessor based system maximum possible number of input/output devices can be connected using I/O mapped I/O technique is

 256
 64
 65536
 512

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 increment by two
None of these
 decrement by two
 remain unaffected

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Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 220 - 1
 20
 220
 220-1

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