Electronics & Computers (Quiz - 1)
Question The unit of frequency is?
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Question The unit of resistance is?
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Question The device which makes or breaks a circuit is?
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Question The path of an electric current is known as a?
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Question Device which opposes the flow of electric current is known as?
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Question Arc Lamp was invented by?
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Question Television was invented by ?
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Question Transistor was invented by?
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Question The unit of wavelength of light is?
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Question The rate at which a body rotates around its axis is known as?
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Question The positive electrode of an electrolytic cell is?
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Question An ion which carries a negative charge is?
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Question The number of protons in the nucleus of an atom is called as its?
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Question An ion which carries a positive charge is?
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Question The negative electrode of an electrolytic cell is?
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Question A device which converts light into electricity is known as?
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Question Heinrich Hertz was a?
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Question Hertz was the first to discover ?
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Question 'Coherer' was discovered by?
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Question Guglielmo Marconi was an?
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Question Marconi invented ?
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Question In 1901, Marconi beamed a signal from Cornwall in England to?
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Question Thomas Edison was an?
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Question The Diode was invented by?
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Question A glass tube with two electrodes is called a?
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Question Lee de Forest was an?
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Question Lee de Forest discovered the?
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Question Radio and television transmit signals using?
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Question To turn pictures into electrical signals, television Cameras rely on?
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Question Transistor was invented in the year?
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Question The first electronic components invented were the?
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Question The inventors of transistor worked in an American company called?
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Question Microchip was invented in the year?
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Question Microchip was invented by?
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Question The microchip invented first was also the first?
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Question Silicon and germanium are ideal examples of?
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Question Thermionic valves were invented in the year?
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Question The device which cuts down current to varying degrees is called a?
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Question LED stands for?
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Question The first mechanical adding machine was invented in the year?
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Question The first mechanical adding machine was invented by?
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Question The first computer was invented in the year?
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Question The first computer was invented by?
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Question The first computer invented was called?
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Question In the present day electronic machines, computers function as?
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Question CAD means?
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Question CPU stands for?
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Question RAM stands for?
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Question J.J. Thomson was a?
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Question In 1897, J.J. Thomson discovered?
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Question A device used for increasing the strength of electric signal is called?
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Question The height of a wave is called?
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Question An electron carries a............charge.
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Question The antiparticle of an electron is called?
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Question The Positron carries.........charge.?
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Question In a transistor, a base is the?
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Question The tube behind the screen in TVs and most computers is called ?
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Question A device for picking up radio signals consisting of a glass tube containing iron filings held between electrodes is?
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Question Generation of an electric current in a wire by moving it through a magnetic field is known as?
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Question Energy sent out through space by varying electric and magnetic fields is called?
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Question The force which makes an electric current is called?
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Question Coating one metal with a thin layer of another by electrolysis is called?
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Question Device used for detecting static electric charge is called?
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Question Device used for measuring small amounts of electric current is called?
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Question Sound too low to be heard by humans is called?
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Question An atom that becomes positively charged by the loss of an electron or negatively charged by the gain of an electron is called an?
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Question Conversion of alternating current to direct current is called as?
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Question VDU stands for?
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Question One Kilobyte is approximately?
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Question DOS stands for?
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Question WORD STAR is a popular?
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Question WORD STAR was developed by?
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Question PC stands for?
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Question ALU stands for?
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Question The VDU and Keyboard together form a?
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Question The speed of the dot matrix printers is measured by CPS which stands for?
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Question The speed of the line printers in measured by LPM which stands for?
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Question DBMS stands for?
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Question IBM is a famous computer company. IBM stands for?
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Question ROM stands for?
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Question The actual machine of the computer is commonly known as?
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Question The programs run on the computer are commonly known as?
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Question All the output which is printed on paper is called?
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Question The number of pixels on a computer.screen determines a screen's?
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Question A processor's speed is measured in?
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Question A software that assists the computer in performing instructions, is called as?
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Question CAM stands for?
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Question DPI stands for?
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Question DTP stands for?
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Question EPROM stands for?
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Question A magnetic storage disk made out of a thin piece of plastic is called?
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Question A pictorial representation of the step by step sequence for solving a problem is known as a?
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Question A measure of storage capacity equal to one thousand megabytes is one?
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Question A variable whose value is accessible throughout the program is called?
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Question A category of application software dedicated to the visual presentation of information is known as?
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Question A huge, worldwide network of computers that communicate with each other, allowing global communications between users is known popularly as?
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Question KB stands for?
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Question LAN stands for?
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Question A printer which uses light to transfer the image to paper is the?
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Question Memory which retains all its contents even after the power is turned off is known as? _HERE100
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