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Microprocessor

Microprocessor
The five flags in 8085 are designated as

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

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Microprocessor
A 37 bit mantissa has an accuracy of

8 decimal places
6 decimal places
10 decimal places
11 decimal places

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

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Microprocessor
In a microcomputer , the address of memory locations are binary numbers that identify each memory circuit where a byte is stored. If a microcomputer uses 20-bit address, then numbers of different memory locations are

 220-1
 220
 220 - 1
 20

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Microprocessor
‘Burst refresh’ in DRAM is also called

None of these
Hidden refresh
Distributed refresh
Concentrated refresh

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Microprocessor
In 8085 microprocessor which one of the following statement is wrong

 serial I/O is possible through SIM and RIM instruction
 serial I/O is not possible
 there is a pin available for serial output
 there is a pin available for serial input

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