Important MCQ Question of computer (IT)

Important MCQ Question  of computer (IT)

Q.Which one of these stores more data than a DVD ?

A. CD Rom

B. Floppy

C. Blue Ray Disk

 D. Red Ray Disk


Q.  ............ interface consists of things like program counter, registers, interrupts and terminals.

A. Hardware

B. Software

C. Data

D. None


Q.The number of bits that a computer can process at a time in parallel is called the ...

A. Word length

B. Speed

C. Accuracy

D. Diligence

The output shown on the computer monitor is called
A. VDU
 B. Hard Copy
C. Soft Copy
 D. Screen Copy
Q.The binary equivalent of 20 is ......

A. 11111

B. 10100

C. 10101

D. 10011


Q. .............. is the first program run on a computer when the computer boots up

A. System software

B. Operating system

C. System operations

D. None



Q. The decimal equivalent of 111111 is ...

A. 25

B. 40

C. 65

D. none of the above


Q. A system that synchronizes hardware and software to produce electronic tones is a ....

A. Synthesizer

B. Plain talk

C. Voice type

D. MIDI


Q. ............ shares characteristics with both hardware and software.

A. Operating system

B. Software

C. Data

D. None


Q. How many characters can be coded in ASCII-7?

A. 7

B. 128

C. 256

D. none of the above


Q. Which of the following is a portable computer?

A. Laptop

B. Sub-note books

C. PDAS

D. All of the above


Q. Multiprogramming systems ..

A. Are easier to develop than single programming systems

B. Execute each job faster

C. Execute more jobs in the same time period

D. Are used only large mainframe computers


Q. Microsecond is ....

A. thousand of a second

B. millionth of a second

C. billionth of a second

D. trillionth of a second


Q. How many characters can be coded in ASCII-8 and EBCDIC?

A. 7

B. 128

C. 256

D. none of the above


Q. The primary purpose of an operating system is .....

A. To make the most efficient use of the computer hardware

B. To allow people to use the computer

C. To keep systems programmers employed

D. To make computers easier to use


Q. The main function of computer is/are ....

A. receive input and produce output

B. information processing

C. information storage

D. all of the above



Q. Processors of all computers, whether micro, mini or mainframe must have ...

A. ALU

B. Primary storage

C. Control Unit

D. All of the above

Q.Computer Moniter is also known as :

A. DVU
B. UVD
C. VDU
D. CCTV


Q. The hardware in which data may be stored for a computer system is called ...

A. Register

B. Bus

C. Control Unit

D. Memory


Q. 1 bytes is equal to .....

A. 4 bits

B. 10 bits

C. 8 bits

D. None of the above


Q.The term 'memory' applies to which one of the following ...

A. Logic

B. Storage

C. Control

D. Input device
Q. The metal disks, which are permanently housed in, sealed and contamination free containers are called ....

A. Hard disk

B. Floppy disk

C. Winchester disk

D. Flexible disk


Q. Which can read data and convert them to a form that a computer can use?

A. Logic

B. Storage

C. Control

D. Input device


Q. Which of the following registers is loaded with the contents of the memory location pointed by the PC?

A. Memory Address Register

B. Memory Data Register

C. Instruction Register

D. Program Counter


Q. 4 bits are equal to ....

A. Nibble

B. Data

C. Bit

D. Bytes


Q. Which is not true of primary storage?

A. Information must be transferred to primary storage

B. It allows very fast access to data

C. It is the part of the CPU

D. All of the above

Q. The unit of a computer system that executes program communicates with and often controls the operation of other subsystems of the computer is known as

A. CPU

B. control unit

C. I/O unit

D. peripheral unit


Q. Which of the following registers is used to keep track of address of the memory location where the next instruction is located?

A. Memory address register

B. Memory data register

C. Instruction register

D. Program counter


Q. Primary storage is ........ as compared to secondary storage.

A. slow and inexpensive

B. fast and inexpensive

C. fast and expensive

D. slow and expensive

Arrange in ascending order the units of memory TB, KB, GB, MB
A. TB>MB>GB>KB
 B. MB>GB>TB>KB
C. TB>GB>MB>KB
D. GB>MB>KB>TB

Q. A memory bus is mainly used for communication between

A. Processor and memory

B. Processor and I/O memory

C. Input device and output device

D. None of the above


Q. What is the name of the reading device which makes use of photo sensors and laser technologies to interpret printed, typed or even hand written data directly from the source document?

A. MICR

B. OCR

C. Mark sensing device

D. ATM


Q. Which is widely use in academic testing?

A. MICR

B. POS

C. OCR

D. OMR


Q. The OCR stands for

A. Out-sized character reader

B. Optical character recognition

C. Operational character reader

D. Only character reader


Q. Hard disks and diskette are ...

A. Direct access devices

B. Sequential access devices

C. Rarely used with micro computers

D. Both A and B


Q. Magnetic tape can serve as

A. Input media

B. Output media

C. Secondary media

D. All of the above


Q. RAM is used as short memory because it

A. is volatile

B. is very expensive

C. has small capacity

D. is programmable

Eight Bits make up a
A. byte
 B. megabyte
C. kilobyte
D. None