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Microprocessor

Microprocessor
In a microprocessor based system the stack is always in

 RAM
 EPROM
 ROM
 microprocessor

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Microprocessor
CALL instruction is a ______ instruction.

 2 bytes
 3 bytes
 1 bytes
 4 bytes

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Microprocessor
The control flags in 8086 are:

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

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Microprocessor
Which components are NOT found on chip in a microprocessor but may be found on chip in a microcontroller?

 EPROM & PORTS
 SRAM & USART
 EPROM, USART & PORTS
 SRAM, EPROM & PORTS

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Microprocessor
Which of the following is a valid integer constant?

127
125 + 3
127
127

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Microprocessor
In microprocessor based system DMA refers to

 direct memory access for the I/O device
None of these
 direct memory access for microprocessor
 direct memory access for the user

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