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Microprocessor

Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

6 AFH
64 H
45 H
234

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

 3.
 4.
 6.
 2.

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 640ns
 320ns
 960ns
 1280ns

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Microprocessor
The number of status flags present in 8085 microprocessor are

 10
 5
 16
 8

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

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

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Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

 1, 2 and 3
 3 and 4 only
 1 and 2 only
 1, 2, 3 and 4

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