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Microprocessor

Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 10 K bytes
 4 K bytes
 1 K bytes
 8 K bytes

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Microprocessor
In 8085 which addressing mode is also called inherent addressing?

Direct
Register
Implicit
Immediate

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Microprocessor
The operating modes of 8255 A are called

Mode 0, mode 1 and mode 2
Mode 0 and mode 1
Mode 0 and mode 2
Mode 0, mode 2 and mode 3

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Microprocessor
Which of the following is a valid integer constant?

125 + 3
127
127
127

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Microprocessor
The microprocessor may be made to exit from HALT state by asserting

 RESTART
 any of the five interrupt lines
 A or B or HOLD line
 READY line

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

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

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