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Microprocessor

Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH PSW
 PUSH A
 POP PSW
 PUSH SP

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Microprocessor
Bus Interface Unit (BIU) in 8086 performs the following functions:

 Instruction decoding.
 Instruction fetch.
 All the above.
 Arithmatic and Logic operations.

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Microprocessor
DMA is used between

 microprocessor and memory
 memory and I/O
 none
 microprocessor and I/O

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Microprocessor
In 8085, the pins for SID and SOD are

4 and 3 respectively
3 and 4 respectively
5 and 4 respectively
4 and 5 respectively

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Microprocessor
The addressing mode in instruction PUSH B is

 register indirect
 register
 direct
 immediate

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Microprocessor
An e-mail message can be sent to many recipients.

False
True

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