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Basic knowledge about computer

 

VDU stands for Visual Display Unit
One kilobyte is approximately 1000 bytes
DOS stands for Disk Operating System
WORD STAR is a popular Word processing programme
WORD STAR was developed by Micro pro Company
PC stands for Personal Computer
ALU stands for Arithmetic Logic Unit
The VDU and Keyboard together form a TERMINAL
The speed of the dot matrix printers is measured by CPS which stands for characters per second
The speed of the line printers is measured by LPM which stands for Lines per second
DBMS stands for Database Management System
IBM is a famous computer company.IBM stands for International Business Machines Corporation
ROM stands for Read Only Memory
The actual machine of the computer is commonly known as Hardware
The programs run on the computer are commonly known as Software
All the output which is printed on paper is called Hard Copy
The number of pixels on a computer screen determines a screes’s Resolution
A processor’s speed is measured in Megahertz
A software that assists the computer in performing instructions,is called as system software
CAM stands for Computer Aided Manufacturing
DPI stands for Dots per Inch
DTP stands for Desk Top Publishing
EPROM stands for erasable and Programmable Read only Memory
A magnetic storage disk made out of a thin piece of plastic is called Floppy Disk
A pictorial representation of the step by step sequence for solving a problem is known as a Flow Chart
A measure of storage capacity equal to one thousand megabytes is one Gigabyte
A variable whose value is accessible throughout the program is called Global Variable
A huge,worldwide network of computers that communicate with each other,allowing global communications between users is known popularly known as Internet
KB stands for Kilobyte
LAN stands for Local Area Network
A printer which uses light to transfer the image to paper is the Laser Printer
Memory which retains all its contents even after the power is turned off is known as Non-Volatile Memory
The result that is generated by the computer after processing the information provided to it is known as Output
Electronic mail is more popularly known as E-Mail
PILOT stands for Programmed Inquiry Learning Or Teaching
PILOT was developed by Doug Engelbardt
IQL stands for Interactive Query Language
LOGO was developed by Dr.seymour Papert
CAL stands for Computer Assisted Learning
APT stands for Automatically Programmed Tooling
`C’language was invented by Dennis M.Ritchie
Modula-2 was developed by Niklaus Wirth
Terminals that have their own memory are called Smart terminals
The memory that needs electric power to sustain its contents is known as Volatile Memory
MOS stands for Metallic Oxide Semiconductors
Dvorak key board was designed by August Dvorak
A simple device which functions as a simpler alternative to the keyboard is the Mouse
Automatic drawing input device is called Scanner
In the second generation computers,magnetic cores were used as Main Memory Devices
LCD stands for Liquid Crystal Display
RADAR stands for Radio Detection and Ranging
RADAR works on the principle of Echo
software-in-Hardware modules are called Firmware
A device by which any microcomputer can use ordinary television set for producing output is called RF modulator
EDSAC stands for Electronic Delayed Storage Automatic Computer
EDVAC stands for Electronic Discrete Variable Automatic Computer
EDSAC was developed in the year 1949
EDVAC was developed in the year 1952
ENIAC stands for Electronic Numerical Integrator and Calculator
The most successful computing device in the ancient time was Abacus
Use of some mechanism for the operation of a machine is known as Automation
Radar contact with the moon was first made in 1945
Radar contact with Venus was first made in 1961
A system in which information is displayed on a television screen is known as Video Text System
A modern means of communication in which the information is stored in a computer at a TV station is known as Teletext
Global communication became possible by using Satellites
Morse code was invented by Samuel Morse
The code used in a teleprinter is the Baudot Code
Teleprinter exchange is popularly known as Telex
A device which converts sound waves into electrical waves is called Microphone
AVC stands for Automatic Volume Control
The device used to measure wavelengths of radio waves is Wavemeter
A hollow metallic tube used in place of wire in electric circuits carrying high frequency currents is called Waveguide
An instrument used to measure the intensity of radiations is the Radiometer
An instrument used to measure electrical voltage is the Voltmeter
VTVM stands for Vacuum Tube Volt Meter
A circuit which maintains a constant voltage is called Voltage Stabilizer
SCR stands for Silicon Controlled Rectifier
A device used to increase or decrease electric voltageis called a Transformer
A magnetic tape that records both audio and video signals is called a Video Tape
The first electronic calculator was manufactured in 1963 by Bell Punch Company,USA
MASER stands for Microwave Amplification by stimulated Emission of Radiation
A computer which can handle a large volume of numbers is called a Number cruncher
POST stands for Power on Self Test
POST is a test carried out just after the computer has been Switched on
An index of the files stored on a disk is called Directory
CP/M stands for Control program for Microcomputers
CP/M was developed by digital Research Inc.,USA
MVS stands for Multiple Virtual Storage Operating System
MVS is used in Mainframe computers
The process of starting a computer is called Booting
A group of four binary digits is called a NIBBLE
BPI stands for Bit per Inch
A smart card is a multifunctional microprocessor
LIPS stands for Logical Inferences Per Second
A computerized machine is normally called a Robot
A robot is a machine directed by a Computer
A robot which resembles a human being is called an Android
PL/1 stands for Programme Language-1
The language PL/1 has combined features of COBOL and FORTRAN
BASIC stands for Begineers All Purpose Symbolic Instruction Code
COBOL stands for Common Busines Oriented Language
ALGOL stands for Algorithmic Language
ALGOL was developed in the early 1960s in Europe
COBOL was first introduced in the year 1961
FORTRAN stands for Formula Translation
FORTRAN was developed and introduced by IBM in the year 1957
PL/1 was introduced in the 1960s by IBM
COMAL stands for Common Algorithmic Language
BASIC was developed by John Kemeny and Thomas Kurtz
SNOBOL stands for String Oriented Symbolic Language
SNOBOL was developed in 1962
LISP stands for List Processing Language
LISP was developed by John McCarthy
Loud speaker was invented by Rice Kellogg
PROM stands for Programmable Read Only Memory
Two types of RAM chips are Dynamic,static
Data is fed into the computer by first converting it into Binary codes

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