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Microprocessor

Microprocessor
A field programmable ROM is called

 PROM
 FROM
 MROM
 FPROM

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Microprocessor
Which of the following conditions is not allowed in an RS latch?

R is negated, S is negated
R is negated, S is asserted
R is asserted, S is negated
R is asserted, S is asserted

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Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 20
 12
 16
 8

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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
 512
 65536

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Microprocessor
Identify the programmable DMA controller from the following

 8279
 8253
 8251
 8257

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Microprocessor
In microprocessor based system DMA refers to

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

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