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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 4
 6
 12
 8

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Microprocessor
Which memory has read operation, byte erase, byte write and chip erase?

EEPROM
Both B and C
UVEPROM
RAM

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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
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?

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

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Microprocessor
A combinational PLD with a programmable AND array and a fixed OR array is called a

 PLA
 PAL
 PLD
 PROM

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 Stack Pointer.
 H-L.
 Program Counter.
 D-E.

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