Hardware Questions

Q:

What are the flags in 8086?

Answer

In 8086 Carry flag, Parity flag, Ausiliary carry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sing flag.

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Subject: Hardware

0 2128
Q:

What is Stack?

Answer

stack is portion of RAM used for saving the content of Program Counter and general purpose registers.


LIFO stacks, also known as "push down" stacks, are the conceptually simplest way of saving information in a temporary storage location for such common computer operations as mathematical expression evaluation and recursive subroutine calling.

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Subject: Hardware

0 2092
Q:

How many bits are in an IPV4 address?

A) 128 bits B) 64 bits
C) 32 bits D) 16 bits
 
Answer & Explanation Answer: C) 32 bits

Explanation:

IPV4 Internet Protocol Version 4 has 32 bits of address.

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3 2079
Q:

What is Non-Maskable interrupts?

Answer

An interrupt which can be never be turned off (ie. disabled) is known as Non-Maskable interrupt

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Subject: Hardware

0 2060
Q:

Give the truth table for a Half Adder. Give a gate level Implementation of the same.

Answer

TRUTH TABLE FOR HALF ADDER


A    B  SUM  CARRY


0    0    0         0


0    1    1         0


1    0    1         0


1    1    0         1


INPLEMENTATION:


For SUM, The two inputs A and B are given to XOR gate.


For Carry, The two inputs A and B are given to AND gate.

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Subject: Hardware

0 2059
Q:

What are the various segment registers in 8086?

Answer

Code, Data, Stack, Extra Segment registers in 8086.

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Subject: Hardware

1 2054
Q:

What is the logical difference b/w Move A to B and COMPUTE B=A?

Answer

In case of Move A to B it will move whatever the value of A into B.It mean it will move numeric, alphanumeric and alphabatic value.


In case of COMPUTE B=A it will assign the value of A into B. But in case of compute only numeric value will be compute.

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Subject: Hardware

0 2034
Q:

What is cache memory?

Answer

Cache momory is a small high-speed memory. it is used for temporary storage of data & information between the main memory and the CPU(center processing unit). The cache memory is only in RAM.


Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. AS the microprocessor processes data, it looks in the cache memory and if it finds the data there.

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Subject: Hardware

0 2005