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Microprocessor

Microprocessor
An 8-bit microprocessor can have ………….. address lines.

 cannot be predicted
 16
 32
 8

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Microprocessor
While CMP B instruction executes,

 only carry flag will be affected.
 only carry and zero flags will be affected.
 no flags will be affected.
 all flags will be affected.

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Microprocessor
The control flags in 8086 are:

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

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Microprocessor
The stack pointer

 resides in microprocessor
 resides in ROM
 may be in RAM or ROM
 resides in RAM

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Microprocessor
Identify the communication interfacing device from the following

 8155
 8255
 8251
 8257

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Microprocessor
CALL instruction is a ______ instruction.

 1 bytes
 4 bytes
 2 bytes
 3 bytes

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