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4

Any device that performs signal conversion is

A. Modulator

B. Modem

C. Keyboard

D. Plotter

Correct Answer :

A. Modulator


Related Questions

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4

which of the following is problem oriented language?

A. High level language

B. Machine language

C. Assembly language

D. Low level language

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4

Which statement is valid about magnetic tape?

A. It is a plastic ribbon

B. It is coated on both sides with iron oxide

C. It can be erased and reused

D. All of above

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4

The digital computer was developed primarily in

A. USSR

B. Japan

C. USA

D. UK

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Who invented Mark I?

A. Howard Aikin

B. J. P. Eckert

C. John Mauchley

D. John v. Atanasoff

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4

Daisy wheel printer is a type of

A. Matrix printer

B. Impact printer

C. Laser printer

D. Manual printer

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4

A register organized to allow to move left or right operations is called a

A. Counter

B. Loader

C. Adder

D. Shift register

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What does DMA stand for?

A. Distinct Memory Access

B. Direct Memory Access

C. Direct Module Access

D. Direct Memory Allocation

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Regarding data, computers are very good at

A. store

B. Processing

C. retrieve

D. All of above

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What characteristic of read-only memory (ROM) makes it useful?

A. ROM information can be easily updated

B. Data in ROM is non-volatile, that is, it remains there even without electrical power.

C. ROM provides very large amounts of inexpensive data storage.

D. ROM chips are easily swapped between different brands of computers.

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4

In order to play and hear sound on a computer, one needs:

A. A sound card and speakers

B. A microphone

C. All of them required

D. None of them required

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4

The term gigabyte refers to

A. 1024 bytes

B. 1024 kilobytes

C. 1024 megabytes

D. 1024 gigabyte

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The term GIGO is relate to which characteristics of computers?

A. Speed

B. Automatic

C. Accuracy

D. Reliability

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The term ________ designates equipment that might be added to a computer system to Enhance its functionality.

A. digital device

B. system add-on

C. disk pack

D. peripheral device

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The difference between memory and storage is that memory is ______ and storage is

A. Temporary, permanent

B. Permanent, temporary

C. Slow, fast

D. All of above

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4

An optical input device that interprets pencil marks on paper media is

A. OMR

B. Punch card reader

C. Optical scanners

D. Magnetic tape

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4

IBM System/360 is

A. Mainframe Computer

B. Mini Computers

C. Micro Computers

D. None of above

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BCD is

A. Binary Coded Decimal

B. Bit Coded Decimal

C. Binary Coded Digit

D. Bit Coded Digit

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________ refers to electronic trespassing or criminal hacking.

A. Cracking

B. Jacking

C. Spoofing

D. Smarming

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Which of the following is not true for a magnetic disk?

A. It is expensive relative to magnetic tape

B. It provides only sequential access to stored data

C. Users can easily update records by writing over the old data

D. All of above

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What kind of memory is both static and non -volatile?

A. RAM

B. ROM

C. BIOS

D. CACHE

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A computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as

A. Super computer

B. Minicomputer

C. Micro computer

D. Macro computer

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4

Which computers are used as servers for any medium sized organizations?

A. Mainframe Computer

B. Mini Computers

C. Micro Computers

D. Super Computers

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4

The output quality of a printer is measured by

A. Dot per sq. inch

B. Dots per inch

C. Dots printed per unit time

D. All of the above

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4

Which of the following is not anti-viruses software?

A. NAV

B. F-Prot

C. Oracle

D. McAfee

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What type of memory is not directly addressable by the CPU and requires special softw3are called EMS (expanded memory specification)?

A. Extended

B. Expanded

C. Base

D. Conventional

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Any method for controlling access to or use of memory is known

A. Memory map

B. Memory protection

C. Memory management

D. Memory instruction

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The ALU of a computer responds to the commands coming from

A. Control section

B. Primary memory

C. External memory

D. Cache memory

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Computer operators

A. writes computer programs for specific problems

B. operate the device which input and output data from the computer

C. normally require a college degree in computer science

D. all of the above

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The two kinds of main memory are:

A. Primary and secondary

B. Random and sequential

C. ROM and RAM

D. All of above

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An intentionally disruptive program that spreads from program to program or from disk to disk is known as a:

A. Trojan horse.

B. Virus.

C. Time bomb.

D. Time-related bomb sequence.