Microprocessor
DS directive in 8085

None of these
Forces the assembler to reserve one byte of memory
Forces the assembler to reserve a specified number of consecutive bytes in the memory
Forces the assembler to reserve a specified number of bytes in the memory

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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.

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

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Microprocessor
Program counter in a digital computer

 Counts the number of times a subroutine is called.
 Points the memory address of the next instruction to be fetched.
 Counts the numbers of programs run in the machine.
 Counts the number of times the loops are executed.

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Microprocessor
IN an intel 8085A microprocessor, why is READY signal used?

 To indicate to user that the microprocessor is working and is ready for use.
 To provide proper WAIT states when the microprocessor is communicating with a slow peripheral device.
None of these
 To slow down a fast peripheral device so as to communicate at the microprocessor’s device.

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