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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 2 bytes
 1 bytes
 3 bytes
 4 bytes

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

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 RST 7.5
 TRAP
 INTR
 RST 5.5

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Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 16
 18
 8
 12

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Microprocessor
Output of the assembler in machine codes is referred to as

 Object program
 Source program
 Macroinstruction
 Symbolic addressing

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Microprocessor
A mask programmed ROM is

 programmed at the time of fabrication
 erasable electrically
 erasable and programmable
 programmed by the user

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