CBSE Class 9 Computer Science Input and Output Devices MCQs Set A

Question: ———— key is used to send special codes to devices and to exit from programs and tasks.
a) Tab
b) escape
c) caps lock
d) enter
Answer: b

Question: Electrostatic printer use a special photographic paper that allows characters to be etched on to the paper using a ————–
a) stylus
b) metal
c) sulphur
d) ribbon
Answer: a

Question: A CRT monitor contains a ——————– mask which is made up of fine mesh up of metal
a) shadow
b) reflex
c) flex
d) original
Answer: a

Question: User can enter data and instruction into the computer with the help of —————- devices.
a) input
b) output
c) external
d) internal
Answer: a

Question The devices which are used to enter data and instructions into the computer are called —— devices
a) input
b) output
c) external
d) internal
Answer: a

Question: A typical keyboard can have 101 to ————- keys
a) 102
b) 103
c) 104
d) 105
Answer: c

Question: Keyboard is the standard input device used to enter —————— data into the computer
a) numeric
b) Image
c) voice
d) textual
Answer: d

Question: ———- is used to represent the position where the keyboard‟s input will be placed
a) cursor
b) navigator
c) mouse
d) pointer
Answer: a

Question: ——– key is used to enter commands or to move the cursor to the beginning of the next line.
a) Tab
b) escape
c) caps lock
d) enter
Answer: d

Question: Most joystick contains two buttons called————————
a) push buttons
b) triggers
c) wheels
d) scrolls
Answer: b

Question: Some mouses include the ————— wheel which is used for scrolling through long documents
a) round
b) wheel
c) scroll
d) all of the above
Answer: c

Question: Among the most popular keyboard layout are ————— and ————
a) QWERTY, DVORAK
b) QWERTY, KODAK
c) QWERTY, TEXT
d) ABSDF, DVORAK
Answer: a

Question: ———————- keys are used to move the cursor.
a) navigation
b) function
c) alphabetic
d) cursor control
Answer: d

Question: Keys used for screen navigation are called ——————————-
a) navigation
b) function
c) alphabetic
d) cursor control
Answer: d

Question: —— is an on-screen object that is used to select text, access menus and interact with programs
a) pointer
b) navigator
c) menu bar
d) object
Answer: a

Question: —————– key is used to move the cursor at the end of line
a) tab
b) end
c) home
d) insert
Answer: b

Question: Keys containing mathematical operators are called —————— keys
a) alphanumeric
b) alphabetic
c) numeric
d) text
Answer: c

Question: One of the factor affecting the quality of the monitor is ——————–
a) color
b) power
c) strength
d) resolution
Answer: d

Question: ——————— is an input device that is used to record audio data
a) keyboard
b) microphone
c) joystick
d) scanner
Answer: b

Question: To jump the equivalent spaces to the left ————- keys should be pressed
a) Tab
b) shift+tab
c) caps lock
d) enter
Answer: b

Question: A printer which produces images without striking on paper is called ————————- printer
a) impact
b) non impact
c) printer
d) plotter
Answer: b

Question: A printed version of electronic document is called ——————– copy
a) hard copy
b) soft copy
c) document
d) folder
Answer: a

Question: A toggle key when activated causes the alphabets in upper case is called —————-key
a) Tab
b) escape
c) caps lock
d) enter
Answer: c

Question: —————– key enables the cursor to jump a couple of spaces to the right on screen.
a) Tab
b) escape
c) caps lock
d) enter
Answer: a

Question: ———————key is used in combination with other keys to produce special characters.
a) alt
b) ctrl
c) escape
d) tab
Answer: a

Question: ——————— Keys provide shortcuts for performing routine tasks on a computer.
a) navigation
b) function
c) alphabetic
d) cursor control
Answer: b

Question: A ——————– is made up of tiny wires that form characters by placing an electrostatic charged image on the paper
a) stylus
b) Cartridge
c) drum
d) ribbon
Answer: a

Question: Thermal and electrostatic printers are example of ——————— printers
a) impact
b) non impact
c) printer
d) plotter
Answer: b

Question: Sometimes enter key is labeled as——————- instead of enter
a) return
b) backspace
c) arrow
d) space
Answer: a

Fill in the blanks :-

Question: ____are used as mass storage as well as input devices for bulk transformation of data,
Answer: floppy drives, hard disks

Question: There are four basic steps involved in speech recognition are ________ ,___________,________________
Answer: I) Say the word ii) digitize the word iii) match the word iv) display the word

Question: CCD stands for____________.___________________.
Answer: charged coupled device

Question: The main categories of printers depending upon the type of print mechanism are______________,_________________,
Answer: I) Impact printers ii) non-impact printers

Question: The printers, which work like typewriters, are known as_________.
Answer: Impact printers

Question: Some examples of modern _________are key board, magnetic ink character reader, optical character reader, voice recognition devices, mouse, joystick, light pen etc.
Answer: Input devices

Question: A _____________monitor works the same way as color TV set.
Answer: composite

Question: The capability of translating voice to text is known as__________.
Answer: Voice recognition/ speech recognition

Question: A key board may be divided into four general areas:________, _____ , ________, ________
Answer: Typewriter area or alphanumeric keypad., numeric keypad , function keypad , screen navigation and editing keys

Question: An RGB monitor has three electron guns;_______,_________,_____________.
Answer: a red gun, a green gun and a blue gun