1.	The most widely used input device is the _________ ?
	mouse
	keyboard
	modem
	monitor
	Answer: keyboard Explanation: The most widely used input device is the keyboard. The keyboard is a standard input device that allows users to input text, commands, and other types of data into a computer system. The keyboard layout and design may vary, but most keyboards feature a standard set of keys that include letters, numbers, symbols, and function keys. While the mouse is also a common input device that allows users to navigate and select items on the screen, it is not as widely used as the keyboard. Therefore, option (b) "keyboard" is the correct answer.
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2.	The main circuit-board of the system unit is the ?
	computer program
	control unit
	motherboard
	RAM
	Answer: motherboard Explanation: The main circuit-board of the system unit is the motherboard. Therefore, the answer is (c) motherboard.
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3.	Back up of the data files will help to prevent ?
	loss of confidentiality
	duplication of data
	virus infection
	loss of data
	Answer: loss of data Explanation: Back up of the data files will help to prevent loss of data. Therefore, the correct answer is (d) loss of data.
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4.	------------ is processed by the computer into information ?
	Data
	Numbers
	Alphabets
	Pictures
	Answer: Data Explanation: Data is processed by the computer into information. Therefore, the correct answer is (a) Data.
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5.	You use a (n) ________, such as a keyboard or mouse, to input information ?
	storage device
	processing device
	input device
	output device
	Answer: input device Explanation: input device
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6.	The patterns of printed lines on most products are called ?
	prices
	striping
	scanners
	barcodes
	Answer: barcodes Explanation: The patterns of printed lines on most products are called barcodes.
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7.	The mouse __________ usually appears in the shape of an arrow ?
	indicator
	marker
	meter
	pointer
	Answer: pointer Explanation: The mouse pointer usually appears in the shape of an arrow
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8.	Every component of your computer is either ?
	software or CPU/RAM
	hardware or software
	application software or system software
	input devices or output devices
	Answer: hardware or software Explanation: Every component of a computer is either hardware or software. Hardware refers to the physical components of a computer that you can see and touch, such as the keyboard, mouse, monitor, hard drive, and motherboard. Software, on the other hand, refers to the programs, applications, and data that are stored electronically on the computer and are not physical components.
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9.	Using output devices one can ?
	input data
	store data
	scan data
	view or print data
	Answer: view or print data Explanation: Using output devices one can view or print data. Therefore, the answer is (d) view or print data.
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10.	When a key is pressed on the keyboard, which standard is used for converting the keystroke into the corresponding bits ?
	ANSI
	ASCII
	EBCDIC
	ISO
	Answer: ASCII Explanation: The answer is (b) ASCII. ASCII (American Standard Code for Information Interchange) is the most common standard used for converting keystrokes into corresponding bits. It assigns a unique number to each character, which is then converted into binary format for processing by the computer.
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