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Microprocessor

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

 Z-80
 68000
 8085
 6502

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Microprocessor
A field programmable ROM is called

 FROM
 FPROM
 PROM
 MROM

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Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T3 & T4
 T4 & T1
 T1 & T2
 T2 & T3

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

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

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Microprocessor
In 8085 name/names of the 16 bit registers is/are

 none of these.
 both A and B.
 stack pointer.
 program counter.

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Microprocessor
‘Burst refresh’ in DRAM is also called

Distributed refresh
Hidden refresh
None of these
Concentrated refresh

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