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Microprocessor

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

 Z-80
 6502
 68000
 8085

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the sequence in which memory contents are fetched by it
 its internal registers
 the stack pointer
 the program counter

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Microprocessor
IC 7485 cannot be cascadeD.

True
False

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Microprocessor
In microprocessor based system I/O ports are used to interface

 all the I/O devices
 the I/P device only
 the I/O devices and memory chips
 the O/P devices only

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH A
 POP PSW
 PUSH PSW
 PUSH SP

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0024H.
 0060H.
 0048H.
 0030H.

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