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Microprocessor

Microprocessor
A microcomputer consists of

 I/O device
All of these
 memory
 a microprocessor

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

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

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Microprocessor
Which of the following pair of gates can form a latch?

A pair of cross copled AND
A pair of cross coupled OR
A pair of cross coupled NAND
A cross coupled NAND/OR

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit A has the same number of gates as circuit B
Circuit B has more gates than circuit A
None of these
Circuit A has more gates than circuit B

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Microprocessor
The instruction set of a microprocessor

 cannot be changed by the user
 is stored inside the microprocessor
 is specified by the user
 is specified by the manufacturers

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the stack pointer
 the program counter
 the sequence in which memory contents are fetched by it
 its internal registers

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