The device used to carry digital data on analogue lines is called as
Modem
Multiplexer
Modulator
Demodulator
Correct Answer :
A. Modem
Related Questions
What is the responsibility of the logical unit in the CPU of a computer?
To produce result
To compare numbers
To control flow of information
To do maths works
In which language is source program written?
English
Symbolic
High level
Temporary
Which of the following is the first computer to use Stored Program Concept?
UNIVAC
ENIAC
EDSAC
None of above
A term associated with the comparison of processing speeds of different computer system is:
EFTS
MPG
MIPS
CPS
Which device is used as the standard pointing device in a Graphical User Environment?
Keyboard
Mouse
Joystick
Track ball
One millisecond is
1 second
10th of a seconds
1000th of a seconds
10000th of a seconds
Which statement is valid about computer program?
It is understood by a computer
It is understood by programmer
It is understood user
Both a & b
On-line real time systems become popular in ________ generation
First Generation
Second Generation
Third Generation
Fourth Generation
The word processing task associated with changing the appearance of a document is
Editing
Writing
Formatting
All of above
Computer operators
writes computer programs for specific problems
operate the device which input and output data from the computer
normally require a college degree in computer science
all of the above
Which of the following registers is used to keep track of address of the memory location where the next instruction is located?
Memory address registers
Memory data register
Instruction register
Program counter
Which of the following is machine independence program?
High level language
Low level language
Assembly language
Machine language
A term associated with the comparison of processing speeds of different computer system is:
EFTS
MPG
MIPS
CPS
The term gigabyte refers to
1024 bytes
1024 kilobytes
1024 megabytes
1024 gigabyte
When was the X window system born?
1984
1989
1988
1990
Who designed the first electronics computer ? ENIAC/
Von Neumann
Joseph M Jacquard
J. P. Eckert and J. W. Mauchly
All of above
A digital computer did not score over an analog computer in terms of
Speed
Accuracy
Reliability
Cost
Networking such as LAN, MAN started from
First generation
Second generation
Third generation
Fourth generation
Mini computers and micro computers are from which generation of computers?
First
Second
Third
Fourth
A hybrid computer uses a _____ to convert digital signals from a computer into analog signals.
Modulator
Demodulator
Modem
Decoder
Computer system comprises of major units
input unit, output unit, control unit
input unit, output unit, control unit and storage
input unit, output unit, central processing unit and storage unit
input, output and storage units
Which of the following is used for manufacturing chips?
Control bus
Control unit
Parity unit
Semiconductor
What do you call the translator which takes assembly language program as input & produce machine language code as output?
Compiler
Interpreter
Debugger
Assembler
A notation used to express clearly on algorithm is known as
Algorithmic language
Assembly language
Machine language
High level language
Reusable optical storage will typically have the acronym-
CD
DVD
ROM
RW
What type of virus uses computer hosts to reproduce itself?
Time bomb
Worm
Melissa virus
Macro virus
One computer that is not considered a portable computer is
Minicomputer
A laptop computer
Tablet PC
All of the above
A normal CD-ROM usually can store up to data?
680 KB
680 Bytes
680 MB
680 GB
Computer is free from tiresome and boardroom. We call it
Accuracy
Reliability
Diligence
Versatility
What does DMA stand for?
Distinct Memory Access
Direct Memory Access
Direct Module Access
Direct Memory Allocation