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Microprocessor

Microprocessor
DMA signal/signals in 8085 is/are

 HOLD.
 READY.
 HLDA.
 All.

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Microprocessor
A microprocessor without the interrupt facility

 cannot be used for DMA operation
 is not useful for process control system
 is best suited for process control system
 cannot be interfaced with any I/O devices

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Microprocessor
The character set of Fortran 77 includes lower case alphabets a to z.

True
False

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Microprocessor
The five flags in 8085 are designated as

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

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 13
 10
 7
 16

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Machine cycle
 Instruction cycle
 Clock cycle
 Memory cycle

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