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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 |