Electronics and Computer
01/The unit of frequency is?
A/Hertz
02/The unit of resistance is?
A/Ohm
03/The device which makes or breaks a circuit is?
A/Switch
04/The path of an electric current is known as a?
A/Circuit
05/Device which opposes the flow of electric current is known as?
A/Resistor
06/Arc Lamp was invented by?
A/C.F.Brush
07/Television was invented by?
A/J.L.Baird
08/Transistor was invented by?
A/J.Bardeen,W.Shockley and W.Brattain
09/The unit of wavelength of light is?
A/Angstrom
10/A device which converts light into electricity is known as?
A/Photo cell
11/Hertz was the first to discover?
A/Radio waves
12/Marconi invented?
A/Radio
13/In 1901,Marconi beamed a signal from Cornwall in England to?
A/Newfoundland
14/Thomas Edison was an?
A/American inventor
15/A glass tube with two electrodes is called a?
A/Diode
16/Lee de Forest was an?
A/American scientist
17/Lee de Forest discovered the?
A/Triode
18/Radio and television transmit signals using?
A/Electromagnetic waves
19/To turn pictures into electrical signals,television Cameras rely on?
A/Photo-electric effect
20/Transistor was invented in the year ?
A/1948
21/The first electronic components invented were the ?
A/Thermionic valves
22/Microchip was invented in the year?
A/1958
23/Microchip was invented by?
A/Jack Kilby
24/The microchip invented first was also the first?
A/Integrated circuit
25/Silicon and germanium are ideal examples of?
A/Semi conductors
26/LED stands for?
A/Light Emitting Diode
27/The first computer was invented in the year?
A/1834
28/The first computer was invented by?
A/Charles Babbage
29/The first computer invented was called?
A/Analytical Engine
30/In the present day electronic machines,computers function as?
A/Artificial brains
31/CAD means?
A/Computer Aided Design
32/CPU stands for?
A/Central Processing Unit
33/RAM stands for?
A/Random Access Memory
34/J.J. Thomson was a?
A/British physicist
35/In 1897,J.J.Thomson discovered?
A/Electrons
36/A device used for increasing the strength of electric signal is called?
A/Amplifier
37/The height of a wave is called?
A/Amplitude
38/An electron carries a charge?
A/Negative
39/In a transistor,a base is the?
A/Filling in the semiconductor sandwich
40/The tube behind the screen in TVs and most computers is called?
A/Cathode Ray Tube
41/The force which makes an electric current is called?
A/Electromotive Force
42/Device used for measuring small amounts of electric current is called?
A/Galvanometer
43/Sound too low to be heard by humans is called?
A/Infrasound
44/VDU stands for?
A/Visual Display Unit
45/One kilobyte is approximately?
A/1000 bytes
46/DOS stands for?
A/Disk Operating System
47/WORD STAR is a popular?
A/Word processing programme
48/WORD STAR was developed by?
A/Micro pro Company
49/PC stands for?
A/Personal Computer
50/ALU stands for?
A/Arithmetic Logic Unit
51/The VDU and Keyboard together form a?
A/TERMINAL
52/The speed of the dot matrix printers is measured by CPS which stands for?
A/characters per second
53/The speed of the line printers is measured by LPM which stands for?
A/Lines per second
54/DBMS stands for?
A/Database Management System
55/IBM is a famous computer company?IBM stands for?
A/International Business Machines Corporation
56/ROM stands for?
A/Read Only Memory
57/The actual machine of the computer is commonly known as?
A/Hardware
58/The programs run on the computer are commonly known as?
A/Software
59/All the output which is printed on paper is called?
A/Hard Copy
60/The number of pixels on a computer screen determines a screes's?
A/Resolution
61/A processor's speed is measured in?
A/Megahertz
62/A software that assists the computer in performing instructions,is called as?
A/system software
63/CAM stands for?
A/Computer Aided Manufacturing
64/DPI stands for?
A/Dots per Inch
65/DTP stands for?
A/Desk Top Publishing
66/EPROM stands for?
A/erasable and Programmable Read only Memory
67/A magnetic storage disk made out of a thin piece of plastic is called?
A/Floppy Disk
68/A pictorial representation of the step by step sequence for solving a problem is known as a?
A/Flow Chart
69/A measure of storage capacity equal to one thousand megabytes is one?
A/Gigabyte
70/A variable whose value is accessible throughout the program is called?
A/Global Variable
71/A huge,worldwide network of computers that communicate with each other,allowing global communications between users is known popularly known as?
A/Internet
72/KB stands for?
A/Kilobyte
73/LAN stands for?
A/Local Area Network
74/A printer which uses light to transfer the image to paper is the?
A/Laser Printer
75/Memory which retains all its contents even after the power is turned off is known as?
A/Non-Volatile Memory
76/The result that is generated by the computer after processing the information provided to it is known as?
A/Output
77/Electronic mail is more popularly known as?
A/E-Mail
78/PILOT stands for?
A/Programmed Inquiry Learning Or Teaching
79/PILOT was developed by?
A/Doug Engelbardt
80/IQL stands for?
A/Interactive Query Language
81/LOGO was developed by?
A/Dr.seymour Papert
82/CAL stands for?
A/Computer Assisted Learning
83/APT stands for?
A/Automatically Programmed Tooling
84/`C'language was invented by?
A/Dennis M.Ritchie
85/Modula-2 was developed by?
A/Niklaus Wirth
86/Terminals that have their own memory are called?
A/Smart terminals
87/The memory that needs electric power to sustain its contents is known as?
A/Volatile Memory
88/MOS stands for ?
A/Metallic Oxide Semiconductors
89/Dvorak key board was designed by ?
A/August Dvorak
Post a Comment