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Microprocessor

Microprocessor
Identify the programmable DMA controller from the following

 8253
 8251
 8279
 8257

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Microprocessor
In Fortran 77 a variable name can contain special characters.

True
False

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

+0
1
-0
-1

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Microprocessor
An I/O processor controls the flow of information between

Two I/O devices
Cache and main memory
Main memory and I/O devices
Cache memory and I/O devices

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

 0048H.
 0024H.
 0060H.
 0030H.

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Microprocessor
A microcomputer consists of

 I/O device
All of these
 a microprocessor
 memory

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