Hardware Questions

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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0 2076
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's the maximum hard drive size for FAT16-based Windows system?

Answer

Maximum hard drive size for FAT16-based windows system is 2GB.

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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:

Which is the Stack used in 8085?

Answer

LIFO (Last In First Out) stack is used in 8085. in this type of Stack the last stored information can be retrieved first.

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Q:

What is Stack Pointer?

Answer

Stack pointer is a special purpose 16-bit register in the Microprocessor, which holds the address od the top of the stack.

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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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0 2033
Q:

What are the blocking and non-blocking assignments in Verilog and which is preferred in Sequential Circutis?

Answer

A blocking assignment is one in which the statements are executed sequentially, i.e., first statement is executed and variable is assigned  a value then second is executed and so on. A non blocking assignment is  one in which statements occurs conturrently, only non blocking assignments should be used in sequential circuit.


 


e.g.


initial


begin


a=b; //blocking


c<=a; //nonblocking


d=c; // blocking


end


 


In this example firstly the value of b is assigned to a and this value is assigned to c only after execution of first statement. the second and the third statements are executed simultaneously, i.e. value a ais assigned to c and previous value if c is assigned to d.

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0 2027