86 Family Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

86 Family Interview Questions

Questions Answers Views Company eMail

What is the difference between MOV and MVI?

15 79205

What are the functions of RIM, SIM, IN?

Pappu Sons, Wipro,

10 75464

What is the immediate addressing mode?

13 32579

What are the different flags in 8085?

Spectra Innovations, TCS, Wipro,

24 100763

What happens during DMA transfer?

9 30582

What do you mean by wait state? What is its need?

2 25288

What is PSW?

DRDO,

11 56944

What is ALE? Explain the functions of ALE in 8085.

17 161550

What is a program counter? What is its use?

9 87324

What is an interrupt?

TCS,

13 25063

Which line will be activated when an output device require attention from CPU?

4 15292

Give two ways of converting a two input NAND gate to an inverter ?

2 18465

Given a circuit, draw its exact timing response?

ATS,

3709

What are set up time & hold time constraints What do they signify Which one is critical for estimating maximum clock frequency of a circuit?

AMD,

1 9851

Give a circuit to divide frequency of clock cycle by two ?

6 16973

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Un-Answered Questions { 86 Family }

After a pop instruction where does the stack pointer points?

1049

Why do we use two ground pins in the pin diagram of 8086?

1321

How many hardware interrupts 8085 supports?

1098

What is the maximum memory addressable size by the 8086?

1112

how does the 8086 differ from the 8085 microprocessor?

1011

What are the interrupts of 8086?

1014

what differences can you state between the hlt and hold states?

1275

why 8085 processor is called an 8 bit processor?

1061

What is the difference between 8085 microprocessor and a 8086 microprocessor?

1246

What are the two major differences between intr and other interrupts (hardware)?

1550

Give example for non-maskable interrupts?

1021

What type of interrupt is the “trap” and what does it do?

1110

Define crossbar switching with reference to 8086?

1017

How many instruction bits does 8085 processor support?

1103

Explain data types used in microcontroller programming,

1300

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