No.
Question
Answer
01
The unit of frequency is
Hertz
02
The unit of resistance is
Ohm
03
The device which makes or breaks a circuit is
Switch
04
The path of an electric current is known as a
Circuit
05
Device which opposes the flow of electric current is known as
Resistor
06
Arc Lamp was invented by
C.F.Brush
07
Television was invented by
J.L.Baird
08
Transistor was invented by
J.Bardeen,W.Shockley and W.Brattain
09
The unit of wavelength of light is
Angstrom
10
A device which converts light into electricity is known as
Photo cell
11
Hertz was the first to discover
Radio waves
12
Marconi invented
Radio
13
In 1901,Marconi beamed a signal from Cornwall in England to
Newfoundland
14
Thomas Edison was an
American inventor
15
A glass tube with two electrodes is called a
Diode
16
Lee de Forest was an
American scientist
17
Lee de Forest discovered the
Triode
18
Radio and television transmit signals using
Electromagnetic waves
19
To turn pictures into electrical signals,television Cameras rely on
Photo-electric effect
20
Transistor was invented in the year
1948
21
The first electronic components invented were the
Thermionic valves
22
Microchip was invented in the year
1958
23
Microchip was invented by
Jack Kilby
24
The microchip invented first was also the first
Integrated circuit
25
Silicon and germanium are ideal examples of
Semi conductors
26
LED stands for
Light Emitting Diode
27
The first computer was invented in the year
1834
28
The first computer was invented by
Charles Babbage
29
The first computer invented was called
Analytical Engine
30
In the present day electronic machines,computers function as
Artificial brains
31
CAD means
Computer Aided Design
32
CPU stands for
Central Processing Unit
33
RAM stands for
Random Access Memory
34
J.J. Thomson was a
British physicist
35
In 1897,J.J.Thomson discovered
Electrons
36
A device used for increasing the strength of electric signal is called
Amplifier
37
The height of a wave is called
Amplitude
38
An electron carries a charge
Negative
39
In a transistor,a base is the
Filling in the semiconductor sandwich
40
The tube behind the screen in TVs and most computers is called
Cathode Ray Tube
41
The force which makes an electric current is called
Electromotive Force
42
Device used for measuring small amounts of electric current is called
Galvanometer
43
Sound too low to be heard by humans is called
Infrasound
44
VDU stands for
Visual Display Unit
45
One kilobyte is approximately
1000 bytes
46
DOS stands for
Disk Operating System
47
WORD STAR is a popular
Word processing programme
48
WORD STAR was developed by
Micro pro Company
49
PC stands for
Personal Computer
50
ALU stands for
Arithmetic Logic Unit
51
The VDU and Keyboard together form a
TERMINAL
52
The speed of the dot matrix printers is measured by CPS which stands for
characters per second
53
The speed of the line printers is measured by LPM which stands for
Lines per second
54
DBMS stands for
Database Management System
55
IBM is a famous computer company.IBM stands for
International Business Machines Corporation
56
ROM stands for
Read Only Memory
57
The actual machine of the computer is commonly known as
Hardware
58
The programs run on the computer are commonly known as
Software
59
All the output which is printed on paper is called
Hard Copy
60
The number of pixels on a computer screen determines a screes's
Resolution
61
A processor's speed is measured in
Megahertz
62
A software that assists the computer in performing instructions,is called as
system software
63
CAM stands for
Computer Aided Manufacturing
64
DPI stands for
Dots per Inch
65
DTP stands for
Desk Top Publishing
66
EPROM stands for
erasable and Programmable Read only Memory
67
A magnetic storage disk made out of a thin piece of plastic is called
Floppy Disk
68
A pictorial representation of the step by step sequence for solving a problem is known as a
Flow Chart
69
A measure of storage capacity equal to one thousand megabytes is one
Gigabyte
70
A variable whose value is accessible throughout the program is called
Global Variable
71
A huge,worldwide network of computers that communicate with each other,allowing global communications between users is known popularly known as
Internet
72
KB stands for
Kilobyte
73
LAN stands for
Local Area Network
74
A printer which uses light to transfer the image to paper is the
Laser Printer
75
Memory which retains all its contents even after the power is turned off is known as
Non-Volatile Memory
76
The result that is generated by the computer after processing the information provided to it is known as
Output
77
Electronic mail is more popularly known as
E-Mail
78
PILOT stands for
Programmed Inquiry Learning Or Teaching
79
PILOT was developed by
Doug Engelbardt
80
IQL stands for
Interactive Query Language
81
LOGO was developed by
Dr.seymour Papert
82
CAL stands for
Computer Assisted Learning
83
APT stands for
Automatically Programmed Tooling
84
`C'language was invented by
Dennis M.Ritchie
85
Modula-2 was developed by
Niklaus Wirth
86
Terminals that have their own memory are called
Smart terminals
87
The memory that needs electric power to sustain its contents is known as
Volatile Memory
88
MOS stands for
Metallic Oxide Semiconductors
89
Dvorak key board was designed by
August Dvorak
90
A simple device which functions as a simpler alternative to the keyboard is the
Mouse
91
Automatic drawing input device is called
Scanner
92
In the second generation computers,magnetic cores were used as
Main Memory Devices
93
LCD stands for
Liquid Crystal Display
94
RADAR stands for
Radio Detection and Ranging
95
RADAR works on the principle of
Echo
96
software-in-Hardware modules are called
Firmware
97
A device by which any microcomputer can use ordinary television set for producing output is called
RF modulator
98
EDSAC stands for
Electronic Delayed Storage Automatic Computer
99
EDVAC stands for
Electronic Discrete Variable Automatic Computer
100
EDSAC was developed in the year
1949
101
EDVAC was developed in the year
1952
102
ENIAC stands for
Electronic Numerical Integrator and Calculator
103
The most successful computing device in the ancient time was
Abacus
104
Use of some mechanism for the operation of a machine is known as
Automation
105
Radar contact with the moon was first made in
1945
106
Radar contact with Venus was first made in
1961
107
A system in which information is displayed on a television screen is known as
Video Text System
108
A modern means of communication in which the information is stored in a computer at a TV station is known as
Teletext
109
Global communication became possible by using
Satellites
110
Morse code was invented by
Samuel Morse
111
The code used in a teleprinter is the
Baudot Code
112
Teleprinter exchange is popularly known as
Telex
113
A device which converts sound waves into electrical waves is called
Microphone
114
AVC stands for
Automatic Volume Control
115
The device used to measure wavelengths of radio waves is
Wavemeter
116
A hollow metallic tube used in place of wire in electric circuits carrying high frequency currents is called
Waveguide
117
An instrument used to measure the intensity of radiations is the
Radiometer
118
An instrument used to measure electrical voltage is the
Voltmeter
119
VTVM stands for
Vacuum Tube Volt Meter
120
A circuit which maintains a constant voltage is called
Voltage Stabilizer
121
SCR stands for
Silicon Controlled Rectifier
122
A device used to increase or decrease electric voltageis called a
Transformer
123
A magnetic tape that records both audio and video signals is called a
Video Tape
124
The first electronic calculator was manufactured in 1963 by
Bell Punch Company,USA
125
MASER stands for
Microwave Amplification by stimulated Emission of Radiation
126
A computer which can handle a large volume of numbers is called a
Number cruncher
127
POST stands for
Power on Self Test
128
POST is a test carried out just after the computer has been
Switched on
129
An index of the files stored on a disk is called
Directory
130
CP/M stands for
Control program for Microcomputers
131
CP/M was developed by
digital Research Inc.,USA
132
MVS stands for
Multiple Virtual Storage Operating System
133
MVS is used in
Mainframe computers
134
The process of starting a computer is called
Booting
135
A group of four binary digits is called a
NIBBLE
136
BPI stands for
Bit per Inch
137
A smart card is a
multifunctional microprocessor
138
LIPS stands for
Logical Inferences Per Second
139
A computerized machine is normally called a
Robot
140
A robot is a machine directed by a
Computer
141
A robot which resembles a human being is called an
Android
142
PL/1 stands for
Programme Language-1
143
The language PL/1 has combined features of
COBOL and FORTRAN
144
BASIC stands for
Begineers All Purpose Symbolic Instruction Code
145
COBOL stands for
Common Busines Oriented Language
146
ALGOL stands for
Algorithmic Language
147
ALGOL was developed in the early 1960s in
Europe
148
COBOL was first introduced in the year
1961
149
FORTRAN stands for
Formula Translation
150
FORTRAN was developed and introduced by IBM in the year
1957
151
PL/1 was introduced in the 1960s by
IBM
152
COMAL stands for
Common Algorithmic Language
153
BASIC was developed by
John Kemeny and Thomas Kurtz
154
SNOBOL stands for
String Oriented Symbolic Language
155
SNOBOL was developed in
1962
156
LISP stands for
List Processing Language
157
LISP was developed by
John McCarthy
158
Loud speaker was invented by
Rice Kellogg
159
PROM stands for
Programmable Read Only Memory
160
Two types of RAM chips are
Dynamic,static
161
Data is fed into the computer by first converting it into
Binary codes


Courtesy http://systempost.blogspot.in/
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