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Microprocessor

Microprocessor
A microcomputer consists of

 I/O device
 a microprocessor
All of these
 memory

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Microprocessor
The ROM programmed during manufacturing process itself is called

 MROM
 EEPROM
 PROM
 EPROM

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Microprocessor
DMA signal/signals in 8085 is/are

 HOLD.
 All.
 READY.
 HLDA.

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 Enable the data bus to be used as low order address bus
 To disable data bus
 To latch data D0-D7 from data bus
 To achieve all the functions listed above

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for the I/O device
 direct memory access for the user
None of these
 direct memory access for microprocessor

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 960ns
 320ns
 640ns
 1280ns

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MORE MCQ ON Microprocessor

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