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Microprocessor

Microprocessor
Total number of modes the 8253 can work

 6
 8
 12
 4

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Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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Microprocessor
DMA signal/signals in 8085 is/are

 READY.
 HOLD.
 All.
 HLDA.

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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
 there is a pin available for serial input
 serial I/O is not possible
 there is a pin available for serial output

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Microprocessor
A microcomputer consists of

 memory
 a microprocessor
 I/O device
All of these

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Microprocessor
The control flags in 8086 are:

 the direction flag(DF).
 the interrupt flag(IF).
All of these
 the Trap flag(TF).

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