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Microprocessor

Microprocessor
Identify the non-maskable interrupt from the following

 RST 6.5
 RST 4.5
 RST 7.5
 RST 5.5

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

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

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Microprocessor
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

Greater than
Less than
The same as
Cannot be determined

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Microprocessor
The word size of 8085 microprocessor is

 8-bit
 20-bit
 16-bit
 4-bit

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Microprocessor
Which one of the following ICs is used to interface keyboard and display?

 8253
 8251
 8259
 8279

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Microprocessor
The microprocessor issues ALE during first T-state of

 memory READ cycle only
 memory WRITE cycle only
 fetch cycle only
 every machine cycle

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