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Microprocessor

Microprocessor
The five flags in 8085 are designated as

Z, C, S, P, AC
Z, CY, S, P and AC
D, Z, S, P, AC
Z, CY, S, D, AC

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Microprocessor
A mask programmed ROM is

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

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Microprocessor
An 8-bit microprocessor signifies that

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

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

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

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Microprocessor
Total number of modes the 8253 can work

 4
 6
 12
 8

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

 8259
 8251
 8253
 8279

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