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Microprocessor

Microprocessor
Identify the communication interfacing device from the following

 8155
 8255
 8251
 8257

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Microprocessor
Which instruction is required to rotate the content of accumulator one bit right along with carry?

 RRC
 RAR
 RLC
 RAL

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Microprocessor
The first machine cycle of an instruction is always

 An I/O read cycle
 A memory write cycle
 A fetch cycle
 A memory read cycle

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Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 285
 65536
 512
 256

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Microprocessor
Which one of the following microprocessor is not an 8-bit microprocessor

 6502
 68000
 8085
 Z-80

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Microprocessor
What is the size (in bytes) of Prefetch queue in 8086?

 3.
 6.
 4.
 2.

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