CBSE Class 7 Computer Science Computer Hardware MCQs

Question. What maintains the status of the last operation carried out by the ALU?
a) Instruction pointer .
b) Status register
c) Accumulator
d) All of the above
e) None of these

Answer : C

Question. What do the abbreviations VAB stand for?
a) Voice activated broadcasting
b) Visual audio board
c) Voice answer back
d) All of the above
e) None of these

Answer : C

Question. How did the computer mouse get its name?
a) It's cable looks like a tail
b) Because it squeaks when moved
c) It has ears
d) Teeth outside mouth
e) None of these

Answer : A

Question. Magnetic storage devices can represent binary 0 by the absence of...?
a) A magnetic field
b) Magnetic tape
c) Static electricity
d) All of the above
e) None of these

Answer : B

Question. Which of the following is a pointing device
a) Hard disk .
b) CD-ROM drive
c) Touch screen used for computer input.
d) RAM
e) None of these

Answer : C

Question. What would be the best way to move around a 3D environment?
a) Use a tracker ball
b) Use a keyboard.
c) Use a space mouse
d) Use Joystick
e) None of these

Answer : C

Question. How many bits of information can each memory cell in a computer chip hold?
a) 8 bits
b) 1 bit
c) Obits
d) All of the above
e) None of these

Answer : A

Question. Where would you find the letters QUERTY?
a) Mouse
b) Screen
c) Numeric Keypad
d) Keyboard
e) None of these

Answer : D

Question. What input device can be used for marking
a) Optical mark reader
b) Bar code reader
c) Mouse a multiple choice test?
d) All of the above
e) None of these

Answer : A

Question. An example of an embedded system is ...?
a) A CD-ROM
b) A machine tool
c) A calculator
d) All of the above
e) None of these

Answer : C

Question. What input device could tell you the price of
a) Mouse a bar of chocolate?
b) All of the above
c) Optical mark reader
d) Bar code reader
e) None of these

Answer : D

Question. Hard copy is a term used to describe...?
a) Printed output
b) Writing on a hard board
c) Storing information on the hard disk
d) All of the above
e) None of these

Answer : A

Question. What are the individual dots which make up a picture on the monitor screen called?
a) Coloured spots
b) All of the above
c) Pixies
d) Pixels
e) None of these

Answer : D

Question. Factory production lines can be automated using...?
a) Machine tools
b) VDUs
c) Plotters
d) All of the above
e) None of these

Answer : B

Question. A digitising tablet can be used for?
a) Tracing diagrams
b) Printing letters
c) Reading barcodes
d) Playing
e) None of these

Answer : A

Question. Which storage device has the largest capacity in Mb's?
a) A floppy disk
b) A CD-ROM
c) Magnetic tape storage
d) All of the above
e) None of these

Answer : B

Question. What would you NOT use with a flatbed plotter?
a) A pen
b) Eraser
c) Paper
d) All of the above
e) None of these

Answer : C

Question. Where would you find a magnetic strip?
a) Speakers
b) Credit card
c) Smart card
d) All of the above
e) None of these

Answer : B

Question. What would be the best way to move around a 3D environment?
a) Electrostatic plotters
b) None of these
c) Thermal printers
d) All of the above
e) Robots

Answer : E

Question. What do you need for an ink jet printer?
a) A drum
b) A cartridge
c) A ribbon
d) All of the above
e) None of these

Answer : B

Question. A laser printer does NOT use?
a) A photoconductive drum
b) A print head
c) A laser beam
d) All of the above
e) None of these

Answer : A

Question. What are you most likely to use when playing
a) Touch screen a computer game?
b) Light pen
c) notepad
d) Joystick
e) None of these

Answer : D

Question. You can protect a floppy disk.
a) Read
b) Read and Write
c) Write
d) All of the above
e) None of these

Answer : C

Question. Information on a hard disk is usually backed-up using a..?
a) CD-ROM
b) Magnetic tape
c) Floppy disk
d) All of the above
e) None of these

Answer : A

Question. A daisy wheel is a type of...?
a) None of these
b) Storage device
c) Pointing device
d) All of the above
e) Printer

Answer : E

Question. Which computers are used in the weather forecasting industry?
a) Super computers
b) Notebook computers
c) Jon Von Neumann computers
d) All of the above
e) None of these

Answer : A

Question. Magnetic tape is a..?
a) Random access medium
b) A parallel access medium
c) Serial access medium
d) All of the above
e) None of these

Answer : C

Question. Vacuum tube based electronic computers are...?
a) Second generation
b) Hoover generation
c) First generation
d) All of the above
e) None of these

Answer : C

Question. An impact printer creates characters by using...?
a) An inked ribbon and print head
b) Electrically charged ink
c) An ink pen
d) All of the above
e) None of these

Answer : A

Question. The amount of data that a disk may containis known as the disk's...?
a) Volume
b) Size
c) All of the above
d) Storage capacity
e) None of these

Answer : D

Question. Which generation of computer was developed from microchips?
a) Third generation
b) Second generation
c) Fourth generation
d) All of the above
e) None of these

Answer : A

Question. Formatting a disk results in all the data being...?
a) Saved to the disk
b) Copied from the disk
c) Deleted from the disk
d) All of the above
e) None of these

Answer : C

Question. Which storage device cannot be erased?
a) A CD-ROM
b) None of these
c) Magnetic tape storage
d) All of the above-
e) A floppy disk

Answer : E

Question. What does a light pen contain?
a) Refillableink
b) Light sensitive elements
c) Pencil lead
d) Blue Ink
e) None of these

Answer : B

Question. Who is accredited with developing the architecture of the modern computer?
a) Sir Clive Sinclair
b) Bill Gates
c) All of the above
d) None of these
e) John Von Neumann

Answer : E

Question. Which generation of computer developed using integrated circuits?
a) Second generation
b) Fifth generation
c) Thirtl generation
d) All of the above
e) None of these

Answer : C

Question. Which bus controls the sequencing of read/write operations?
a) Control bus
b) Address bus
c) Data bus
d) All of the above
e) None of these

Answer : A

Question. What are responsible for storing permanent data and instructions?
a) RAM chips
b) All of the above
c) DRAM chips
d) ROM chips
e) None of these

Answer : D

Question. Hard disks can have a storage capacity in the region of...?
a) 1Gb
b) 1.44Mb
c) 720K
d) All of the above
e) None of these

Answer : A

Question. Which parts of the computer perform arithmetic calculations?
a) Registers
b) ALU
c) Logic bus
d) All of the above
e) None of these

Answer : B

Question. Which of these is actually a very basic computer?
a) a toaster
b) a stove
c) a light bulb
d) a calculator
e) None of these

Answer : D

Question. What are small high speed memory units used for storing temporary results?
a) All of the above
b) Registers
c) Control unit
d) CPUs
e) None of these

Answer : D

Question. What type of computer chips are said to be volatile?
a) ROM chips
b) RAM chips
c) DRAM
d) All of the above
e) None of these -

Answer : B

Question. Which computers use single chip processors?
a) All of the above
b) Parallel computers
c) Cray computers
d) Personal computers
e) /tone of these

Answer : D

Question. Travel agents use this computer system when reserving flights.
a) Supercomputer
b) Mainframe computer
c) Personal computer
d) All of the above
e) None of these

Answer : C

Question. Where should floppy disks be stored?
a) By a sunny window
b) In a drawer
c) All of the above
d) By magnet objects
e) None of these

Answer : B

Question. Which computers are connected to many terminals and can multitask?
a) Minicomputers
b) LEO 1 computers
c) All of the above
d) None of these
e) Personal computers running MS-DOS

Answer : E

Question. Which bus carries information between processors and peripherals?
a) Autobus
b) Data bus
c) Address bus
d) All of the above
e) None of these

Answer : D

Question. Which generation of computer uses more than one microprocessor?
a) Second generation
b) Third generation
c) None of these
d) All of the above
e) Fifth generation

Answer : E

Question. The contents of these chips are lost when the computer is switched off?
a) RAM chips
b) ROM chips
c) DRAM chips
d) All of the above
e) None of these

Answer : A