Online Computer Science Test - Computer Fundamentals Test 3

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Total number of questions: 20.
Time allotted: 30 minutes.
Each question carries 1 mark; there are no negative marks.
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The average time necessary for the correct sector of a disk to arrive at the read write head is _____

Down time

Seek time

Rotational delay

Access time

None of the above

[#]

Binary numbers need more places for counting because

They are always big numbers

Any no. of 0's can be added in front of them

Binary base is small

0's and l's have to be properly spaced apart

None of the above

[#]

What is meant by a dedicated computer?

Which is used by one person only

Which is assigned one and only one task

Which uses on kind of software

Which is meant for application software only

None of the above

[#]

To locate a data item for storage is

Field

Feed

Database

Fetch

None of the above

[#]

The time taken for the read/write head to move to the correct track on the magnetic disk is called

epoch delay

latency delay

seek time

approach time

None of the above

[#]

A hashing scheme is used with

sequential file organization

direct file organization

indexed sequential file organization

partitioned file organization

None of the above

[#]

Bit map terminal

support displays containing multiple windows

requires considerable amount of video RAM

requires tremendous amount of copying and hence low performance

All of the above

None of the above

[#]

The first firm to mass-market a microcomputer as a personal computer was

IBM

Sperry Univac

Radio Shack

Data General Corporation

None of the above

[#]

When did IBM close the last of its punched card manufacturing plant?

June, 1989

December, 1984

March, 1982

November, 1979

None of the above

[#]

10.

Conversion of hexadecimal number 1D7F₁₆ to a decimal number is

7551₁₀

8771₁₀

5557₁₀

7781₁₀

None of the above

[#]

11.

The terminal device often used in checking charge cards that offers both a limited keyboard input and visual output is the:

Intelligent terminal

POS terminal

Video display terminal

Audio response unit

None of the above

[#]

12.

What digits are representative of all binary numbers?

Both (a) and (b)

None of the above

[#]

13.

The flow and timing to data to and from the microprocessor is regulated by

control pins

address pins

data pins

power pins

None of the above

[#]

14.

Programmed instructions to the computer is known as

Data

Code

Documentation

Database

None of the above

[#]

15.

What type of memory is not directly addressable by the CPU and requires special software called EMS (expanded memory specification)?

Extended

Expanded

Base

Conventional

Basic system

[#]

16.

A device that can accept data, hold them&deliver them on demand at a later time is known as

Buffer

Memory

CPU

None of the above

[#]

17.

A half byte is know is

Data

Bit

Half byte

Nibble

None of the above

[#]

18.

A machine associated with card-based data processing is

Codomain

Collator

Cartridge

Digitizer

None of the above

[#]

19.

Which of the following is used as "Input device" for the computer?

Printer

VDU

Light pen

None of the above

[#]

20.

Sequential file organization is most appropriate for which of the following applications?

grocery-store checkout

bank checking accounts

payroll

airline reservations

None of the above

[#]

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Online Computer Science Test - Computer Fundamentals Test 3

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