Hardware Questions

Q:

What is microprocessor?

Answer

Micro processor is a program-controlled device, which fetches the instruction from memory, decodes and executes the instructions. Most Micro Processor are single-chip devices.

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Q:

Explain compiler?

Answer

compiler is used to translate the high-level language program into machine code at a time. It doesn't require special instruction to store in a memory, it stores automatically. the execution time is less compared interpreter.


A compiler is a program that translates a source program written in some high-level programming langualge (such as Java) into machine code for some computer architecture (such as the Inter Pentium archiecture).

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Q:

What are the minimal cost and minimal risk solution?

Answer

In binary representation there are some states that believed to be never occurred due to some particular functionality of a given circuit. If zero output is assigned to such states then it is called minimal risk solution as  we are resetting the formidable states which could be occurred accidentally. Another approach is to assigned a don't care to them so it results in lesser logic and hence is called minimal cost solution.

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Q:

Why the temporary registers W and Z are named so i mean we start from A, B, C, D, E then H and L coz H stands for higher bit and L for lower bit of the address pinted by memory pointer.. but wats W and Z for?

Answer

As W and Z alphabets are not widely used similarly as W and Z is internally used they would have been named so

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Q:

Where's MBR located on the disk?

Answer

Main Boot Record is located is sector 0, track 0, head 0, cylinder 0 of the primary active partition.

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Q:

What is Program counter?

Answer

Program counter holds the address of either the first byte of the next instruction to be fetched for execution of the address of the next byte of a multi byte instruction, which has not been completely fetched. In both the cases it gets incremented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction.

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Q:

Define HCMOS?

Answer

High-density n-type Complimentary Metal Oxide Silicon field effect transistor.

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Q:

what are the various flags used in 8085?

Answer

Sign flag, Zero flag, Auxillary flag, Parity flag, Carry flag.

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