Microprocessor
What is mean by ALU

 Arithmetic local unsigned
 Arithmetic logic unsigned
 Arithmetic logic upgrade
 Arithmetic logic unit

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Microprocessor
Which one of the following is not correct?

 An interrupt signal is required at the start of every program
 Bootstrap is a technique or device for loading first instruction
 Bus is a group of wires
 An instruction is a set of bits that defines a computer operation

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Microprocessor
Which of the following is not true during the execution of an interrupt service routine, which does not contain any EI instructions

 the microprocessor can be interrupted by a non-mask able interrupt
 all interrupts except non-maskable interrupt are disabled
 the microprocessor cannot be interrupted by any interrupt
 the microprocessor cannot be interrupted by any mask able interrupt

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

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