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Microprocessor

Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

m
2^m
2*m
log2 (m)

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Microprocessor
The operations executed by two or more control units are referred as

 Multi-operations
 Micro-operations
 Bi control-operations
 Macro-operations

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Microprocessor
Bus Interface Unit (BIU) in 8086 performs the following functions:

 Instruction fetch.
 Instruction decoding.
 Arithmatic and Logic operations.
 All the above.

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 01000000
 00000100
 010001000
 11000100

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Microprocessor
PSW stands for

 accumulator contents
 flag byte
 none
 accumulator and flag register contents

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Microprocessor
Identify the programmable interval timer from the following

 8275
 8252
 8279
 8253

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