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Microprocessor

Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 Z-80
 6502
 8085
 68000

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the O/P devices only
 the I/O devices and memory chips
 all the I/O devices
 the I/P device only

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Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

 RST 5.5
 both ‘a’ and ‘b’
 RST 6.5
 TRAP

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

True
False

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Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 247
 246
 245
 244

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Microprocessor
What is SIM?

  Set interrupt mask.
 Sorting interrupt mask.
 None of these.
 Select interrupt mask.

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