Which one of the following is the main memory?

(a)

ROM

(b)

RAM

(c)

Flash drive

(d)

Hard disk

Expansion for BCD_________

(a)

Binary coded-decimal

(b)

binary complement decimal

(c)

binary computer decimal

(d)

binary convert decimal

Find the wrong pair from the following.

(a)

Null element : A + 1 = 1

(b)

Involution: \(\overset { = }{ A } =A\)

(c)

Demorgan's  : \(\bar { A+B } =\bar { A } .\bar { B } \)

(d)

Commutative : A + B = B . A

Which of the following is not an example of CISC processor?

(a)

Pentium IV

(b)

Pentium I

(c)

Pentium II 

(d)

Pentium III

The color of Single-layered DVD is.......

(a)

Gold

(b)

BIue

(c)

White

(d)

Silver

___________is commonly used to measure wave frequencies.

(a)

Hertz

(b)

internal memory

(c)

RAM

(d)

ALU

Which is used to perform any computer operation?

(a)

Application software

(b)

Hardware

(c)

Operating system

(d)

File Management

Multiprocessor operating system is also called _____processing.

(a)

Multiuser

(b)

Real time

(c)

Parallel

(d)

Time sharing

Which operating system provides GUI?

(a)

Distributed

(b)

Real time

(c)

Interactive

(d)

Multi-User

The process of converting cipher text to plain text is called

(a)

Encryption

(b)

Decryption

(c)

key

(d)

proxy server