General Computer Knowledge

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Which of the following is a non volatile memory?









Correct Answer :


Explanation :

Read Only Memory: ROM is non-volatile memory, which do not loose their content on failure of power supply.

A ROM is a form of semiconductor memory technology used where the data is written once and then not changed.

Which shortcut key is used to select the entire document in MS Word ?

A) Alt + A
B) Shift + A
C) Ctrl + A
D) Enter + A

Correct Answer :Ctrl + A

Which shortcut key is used to close the opened window?

A) Ctrl + F1
B) Alt + F2
C) Ctrl + F4
D) Alt + F4

Correct Answer :Alt + F4

Which shortcut key is used to select an entire column in M S Excel?

A) Ctrl + Enter
B) Ctrl + Space
C) Ctrl + Alt
D) Ctrl + Shift

Correct Answer :Ctrl + Space

Which of the following is not used for computer memory measurement?

A) Nibble
B) Byte
D) Bit

Correct Answer :MIPS

Which one of the following was the first computer network?


Correct Answer :ARPANET

For an internet connection which of the following device is required?

A) Mouse
B) Modem
C) Printer
D) Scanner

Correct Answer :Modem

Which of the following are the storage devices?
(I) Hard disk.
(II) Floppy Disk

A) I and II
B) II and III
C) I and III
D) I, II and III

Correct Answer :I, II and III

What is the use of name box in MSExcel?

A) Displays the Sum
B) Used to type formulas
C) Displays the address of the cell
D) Used to insert rows and columns

Correct Answer :Displays the address of the cell

Which shortcut key is used to delete an entire word, in MSWord?

A) Ctrl + Delete
B) Alt + delete
C) Shift Backspace
D) Ctrl+D

Correct Answer :Ctrl + Delete

In MS Excel _________ is written before writing any formula?

A) =
B) >
C) <
D) %

Correct Answer :=

Which protocol is the protocol of the internet?


Correct Answer :TCP/IP

Bluetooth is an example of which type of network?


Personal Area network


Local Area network


Virtual private network


Wide area Network

Correct Answer :

Personal Area network

Explanation :

Bluetooth is a Wireless Personal Area Network (WPAN) technology and is used for exchanging data over smaller distances.It enables low-power, short distance wireless networking between phones, computers, and other network devices.

What is the full form of OSI?

A) Open system inter connection
B) Operating system interface
C) Optical service implementation
D) Optical Status Identification

Correct Answer :Open system inter connection

Which of the following are the three components of CPU (Central Processing Unit) of a Computer?

A) CU, ALU and Output
B) Output, MU and CU
C) Input, MU and ALU
D) ALU, MU and CU

Correct Answer :ALU, MU and CU

Which of the following is not an input device?

A) Mouse
B) Speaker
C) Microphone
D) Joystick

Correct Answer :Speaker

Which of the following electronic devices was used in First generation Computers?

A) Microprocessor
B) Vacuum Tube
C) Transistor
D) Integrated Circuit

Correct Answer :Vacuum Tube

Every NIC (Network Interface Card) has its own _____address that identifies the PC on the network?


Correct Answer :MAC

Which language is directly understood by the computer without translating it?

A) Machine language
B) Hardware language
C) Inter language
D) Soft language

Correct Answer :Machine language

Which of the following can be the extension of MS Word document?

A) .doc
B) .exe
C) .txt
D) .dll

Correct Answer :.doc

MSExcel is an example of ?

A) A word Processor
B) Spread Sheet software
C) Both (a) and (b)
D) Neither (a) nor (b)

Correct Answer :Spread Sheet software

Which is a functional key used to display ‘save as’ box?

A) F10
B) F12
C) F9
D) F11

Correct Answer :F12

In MS Excel, by default the number are ___________ Aligned ?

A) Left
B) Right
C) Justified
D) Center

Correct Answer :Right

In M.S. Word, what is the use of “Alt + Shift + d”?

A) Inserts a table
B) Inserts date
C) Inserts the logo
D) Inserts picture

Correct Answer :Inserts date

What is of the following network device is used to join two network segments together?

A) Bridge
B) Repeater
C) Firewall
D) Bus

Correct Answer :Bridge

Latest Updates


20% of a quantity is Rs 400, the quantity equals?

Time and Work

A certain piece of work can be completed by 12 men in 9 days. After they have worked for six days, six more men joined them. How many days will it take to complete the remaining work?

Ratio and Proportion

A certain sum was divided among A, B and C in the ratio 5 : 7 : 6. If B received Rs 4500 more than C, find C's share?

Problems on Ages

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is A?

Time and Work

A and B can together finish a work in 30 days. They worked at it for 20 days and then B left. The remaining work was done by A alone in 20 more days. B alone can do the entire work in?


A retailer buys a washing machine marked at Rs 4800 and gets two successive discounts of 15% and 5%. If he spends Rs 124 on transportation and sells the washing machine at a gain of 13%, then find the selling price of the machine.

Boats and Streams

Speed of a boat in still water is 10 kmph, and speed of the stream is 5 Kmph. In how many minutes would the boat cover a distance of 5 km downstream?

Problems on Ages

The age of two persons differ by 2 years. If the sum of their ages is equal to the square root of 144 then find the age of the elder among the two person?

The age of A is six times the age of his son. A's father is 40 years older than him. Together, they are 118 years old. What is the age of A?


The average mark of 50 students is 75. If the marks obtained by one of the student had been written as 36 instead of 86, then the corrected average of marks is:


What is inode?

Problems on Ages

A group of 15 people has average age of 45 years. Two persons are excluded and the average of the remaining is increased by 5 years. What is the average age of the two persons who have been excluded?


In the world cup, Yuvraj has a batting average of 65 in 7 matches till semi-final. How much should Yuvraj score in the 8th match ie the final match to get a batting average of 85?

Problems on Trains

A train takes 8 sec to cross a 75 metre long platform at a speed of 90 km/h. What is the length of the train?

Alligation or Mixture

In what ratio must Rs 50 per kg salt be mixed with Rs 80 per kg salt to obtain a mixture worth of Rs 60 per kg?


Find the sum of the given series: 3 + 9 + 27 + 81 + 243 + 729 + 2187 + 6561


Find the average. 62, 54, 44, 36, 28 & 22


In an examination, 36% of the students failed in English and 40% failed in Hindi. If 20% of the students failed in both subjects, then the pass percentage is?

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