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Microprocessor

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

4
6
2
8

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

 8279
 8251
 8253
 8259

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Microprocessor
An 8-bit microprocessor signifies that

 8-bit address bus
 8-bit controller
 8-bit data bus
 8-interrupt lines

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Microprocessor
The processor status word of 8085 microprocessor has five flags namely:

 S, Z, AC, P, CY
 S, Z, AC, P, OV
 S, OV, AC, P, CY
 S, Z, OV, P, CY

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 3
 5
 4
 6

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Microprocessor
Which components are NOT found on chip in a microprocessor but may be found on chip in a microcontroller?

 SRAM & USART
 EPROM & PORTS
 EPROM, USART & PORTS
 SRAM, EPROM & PORTS

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