VDU stands forVisual Display Unit
One kilobyte is approximately1000 bytes
DOS stands forDisk Operating System
WORD STAR is a popularWord processing programme
WORD STAR was developed byMicro pro Company
PC stands forPersonal Computer
ALU stands forArithmetic Logic Unit
The VDU and Keyboard together form aTERMINAL
The speed of the dot matrix printers is measured by CPS which stands forcharacters per second
The speed of the line printers is measured by LPM which stands forLines per second
DBMS stands forDatabase Management System
IBM is a famous computer company.IBM stands forInternational Business Machines Corporation
ROM stands forRead Only Memory
The actual machine of the computer is commonly known asHardware
The programs run on the computer are commonly known asSoftware
All the output which is printed on paper is calledHard Copy
The number of pixels on a computer screen determines a screes’sResolution
A processor’s speed is measured inMegahertz
A software that assists the computer in performing instructions,is called assystem software
CAM stands forComputer Aided Manufacturing
DPI stands forDots per Inch
DTP stands forDesk Top Publishing
EPROM stands forerasable and Programmable Read only Memory
A magnetic storage disk made out of a thin piece of plastic is calledFloppy Disk
A pictorial representation of the step by step sequence for solving a problem is known as aFlow Chart
A measure of storage capacity equal to one thousand megabytes is oneGigabyte
A variable whose value is accessible throughout the program is calledGlobal Variable
A huge,worldwide network of computers that communicate with each other,allowing global communications between users is known popularly known asInternet
KB stands forKilobyte
LAN stands forLocal Area Network
A printer which uses light to transfer the image to paper is theLaser Printer
Memory which retains all its contents even after the power is turned off is known asNon-Volatile Memory
The result that is generated by the computer after processing the information provided to it is known asOutput
Electronic mail is more popularly known asE-Mail
PILOT stands forProgrammed Inquiry Learning Or Teaching
PILOT was developed byDoug Engelbardt
IQL stands forInteractive Query Language
LOGO was developed byDr.seymour Papert
CAL stands forComputer Assisted Learning
APT stands forAutomatically Programmed Tooling
`C’language was invented byDennis M.Ritchie
Modula-2 was developed byNiklaus Wirth
Terminals that have their own memory are calledSmart terminals
The memory that needs electric power to sustain its contents is known asVolatile Memory
MOS stands forMetallic Oxide Semiconductors
Dvorak key board was designed byAugust Dvorak
A simple device which functions as a simpler alternative to the keyboard is theMouse
Automatic drawing input device is calledScanner
In the second generation computers,magnetic cores were used asMain Memory Devices
LCD stands forLiquid Crystal Display
RADAR stands forRadio Detection and Ranging
RADAR works on the principle ofEcho
software-in-Hardware modules are calledFirmware
A device by which any microcomputer can use ordinary television set for producing output is calledRF modulator
EDSAC stands forElectronic Delayed Storage Automatic Computer
EDVAC stands forElectronic Discrete Variable Automatic Computer
EDSAC was developed in the year1949
EDVAC was developed in the year1952
ENIAC stands forElectronic Numerical Integrator and Calculator
The most successful computing device in the ancient time wasAbacus
Use of some mechanism for the operation of a machine is known asAutomation
Radar contact with the moon was first made in1945
Radar contact with Venus was first made in1961
A system in which information is displayed on a television screen is known asVideo Text System
A modern means of communication in which the information is stored in a computer at a TV station is known asTeletext
Global communication became possible by usingSatellites
Morse code was invented bySamuel Morse
The code used in a teleprinter is theBaudot Code
Teleprinter exchange is popularly known asTelex
A device which converts sound waves into electrical waves is calledMicrophone
AVC stands forAutomatic Volume Control
The device used to measure wavelengths of radio waves isWavemeter
A hollow metallic tube used in place of wire in electric circuits carrying high frequency currents is calledWaveguide
An instrument used to measure the intensity of radiations is theRadiometer
An instrument used to measure electrical voltage is theVoltmeter
VTVM stands forVacuum Tube Volt Meter
A circuit which maintains a constant voltage is calledVoltage Stabilizer
SCR stands forSilicon Controlled Rectifier
A device used to increase or decrease electric voltageis called aTransformer
A magnetic tape that records both audio and video signals is called aVideo Tape
The first electronic calculator was manufactured in 1963 byBell Punch Company,USA
MASER stands forMicrowave Amplification by stimulated Emission of Radiation
A computer which can handle a large volume of numbers is called aNumber cruncher
POST stands forPower on Self Test
POST is a test carried out just after the computer has beenSwitched on
An index of the files stored on a disk is calledDirectory
CP/M stands forControl program for Microcomputers
CP/M was developed bydigital Research Inc.,USA
MVS stands forMultiple Virtual Storage Operating System
MVS is used inMainframe computers
The process of starting a computer is calledBooting
A group of four binary digits is called aNIBBLE
BPI stands forBit per Inch
A smart card is amultifunctional microprocessor
LIPS stands forLogical Inferences Per Second
A computerized machine is normally called aRobot
A robot is a machine directed by aComputer
A robot which resembles a human being is called anAndroid
PL/1 stands forProgramme Language-1
The language PL/1 has combined features ofCOBOL and FORTRAN
BASIC stands forBegineers All Purpose Symbolic Instruction Code
COBOL stands forCommon Busines Oriented Language
ALGOL stands forAlgorithmic Language
ALGOL was developed in the early 1960s inEurope
COBOL was first introduced in the year1961
FORTRAN stands forFormula Translation
FORTRAN was developed and introduced by IBM in the year1957
PL/1 was introduced in the 1960s byIBM
COMAL stands forCommon Algorithmic Language
BASIC was developed byJohn Kemeny and Thomas Kurtz
SNOBOL stands forString Oriented Symbolic Language
SNOBOL was developed in1962
LISP stands forList Processing Language
LISP was developed byJohn McCarthy
Loud speaker was invented byRice Kellogg
PROM stands forProgrammable Read Only Memory
Two types of RAM chips areDynamic,static
Data is fed into the computer by first converting it intoBinary codes