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11) Which of the following is part of the System Unit?

A. Monitor

B. CPU

C. Floppy Disk

D. CD-ROM

Answer & Explanation

Answer: Option B 
CPU

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12) A ____ is an example of an input device.

A. printer

B. monitor

C. central processing unit

D. Scanner

Answer & Explanation

Answer: Option D 
Scanner

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13) A set of instructions telling the computer what to do is called _

A. mentor

B. program

C. compiler

D. instructor

Answer :

Answer: Option B 

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14) Who is father of modern computers?

   A.) Abraham Lincoln

   B.) James Gosling

   C.) Charles Babbage

   D.) Gordon E. Moore

Show Answer

Answer: Option 'C'

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15) With which of the following all formulas in excel starts ?

A) /

B) *

C) $

D) =

Answer: Option D

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16) Virtual memory is __

A.) an extremely large main memory

B.) an illusion of extremely large main memory

C.) a type of memory

D.) All of these

Answer: Option 'B'

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16) By default, your documents print in ____ mode

A.) Page setup

B.) Portrait

C.) Landscape

D.) Print preview

Show Answer

Answer: Option 'B'

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Different types of Computer Port?
Port:- Port is a connecting socket outside the system into which different type of cables are plugged. It is place
where device are physically connected. There are many type of ports used in computer system. These ports are:-
👉 Serial Port
👉 Parallel Port
👉 USB Port (Universal serial bus)
👉 SCSI Port (Small Computer system Interface).
👉 Serial Port:- Serial port transmits one bit of a byte, one at a time as a single stream of bits. It is used for
transmitting slow data over long distances. E.g Dialup modem, serial mice use serial ports.
👉 Parallel Port:- A Parallel port transmit 8 bit of byte of data in parallel. It is used for transmitting fast data
over short distances. It is used to connect printer, monitor, projector etc.
👉 USB Port:- A USB port can connect up to 127 peripheral devices such as a mouse, digital camera, scanners,
speakers etc. It also permit to connect plug and play device.
👉 Small computer System Interface (SCSI Port):- SCSI port allows data to be transmitted in a daisy chain to
up to 7 devices at a higher speed (32 bit at a time). It is fast data transmitting device is used to connect HDD
(Hard disk drive, CD-ROM drives etc with the computer.