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Microprocessor

Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 18
 12
 16
 8

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

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

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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
During the execution of the instruction, the ________tests the status and control flags and updates them based on the results of executing the instruction.

 None of these
 Bus Interface Unit (BIU)
 Execution Unit (EU)
 Both ‘c’ and ‘d’

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Microprocessor
Register pair used to indicate memory

 H and L
 D and E
 W and Z
 B and C

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Microprocessor
The minimum number of transistors required to implement a two input AND gate is

4
2
6
8

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