Microprocessor
When referring to instruction words, a mnemonic is

 a short abbreviation for the operation to be performed.
 shorthand for machine language.
 a short abbreviation for the data word stored at the operand address.
 a short abbreviation for the operand address.

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Microprocessor
Assertion (A): Each memory chip has its own address latch. Reason (R): ALE signal comes out of microprocessor 8085 and goes to memory chip.

Both A and R are correct and R is correct explanation of A
A is correct R is wrong
Both A and R are correct but R is not correct explanation of A
A is wrong R is correct

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Microprocessor
HLDA signal in 8085 performs the following operation:

 Indicates that the CPU has not received the HOLD request.
 Hold the data in the accumulator until the microprocessor is turned OFF.
 Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle.
 Indicates that another master is requesting the use of the address and data buses.

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