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Microprocessor

Microprocessor
The minimum number of transistors required to implement a two input AND gate is

2
6
8
4

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Microprocessor
Identify the communication interfacing device from the following

 8257
 8255
 8251
 8155

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Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

NOR-NAND
NAND-NOR
OR-NAND
NAND-NAND

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Microprocessor
The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is

 IC = FC + 2EC
 IC = FC + EC
 EC = IC + FC
 IC = FC - EC

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Microprocessor
Which of the data transfer is not possible in microprocessor

 memory to memory
 memory to accumulator
 accumulator to memory
 I/O device to accumulator

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Microprocessor
Which of the following is not a general purpose peripheral?

Programmable interval timer
Programmable CRT controller
I/O port
Programmable interrupt controller

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