Basic questions about computer for NET JRF exam

Q.1: Who invented the first computer mouse in the year of 1964, which was made of wood?
a) Douglas Engelbart
b) John Manchly
c) J. Presper Eckert
d) Tim W. Lee

Ans: a) Douglas Engelbart
Imp Facts:
Wooden shell, 2 metal wheels underneath, single red button on top called “mouse” because the cord coming out the back looked like a tail.
Patented in 1970 as “X-Y position indicator for a display system. First publicly demoed in 1968 in what is now called “The Mother of All Demos”

Q.2: What is the full form of CPU?
a) Central Processing Unit
b) Computer Processing Unit
c) Central Program Unit
c) Control Processing Unit
Ans: a) Central Processing Unit

Q.3: Which part of a computer is known as the “brain” of the computer?
a) RAM
b) Hard Disk
c) CPU
d) Monitor
Ans: c) CPU
Q.4: What type of memory is RAM?
a) Permanent Memory
b) Volatile Memory
c) Optical Memory
d) Secondary Memory
Ans: b) Volatile Memory
Q.5: How many bits are there in one byte?
a) 4
b) 8
c) 16
d) 32
Ans: b) 8 bits
Q.6: What is the shortcut key for Copy in MS Word?
a) Ctrl + X
b) Ctrl + C
c) Ctrl + V
d) Ctrl + P
Ans: b) Ctrl + C
Q.7: What does URL stand for?
a) Uniform Resource Locator
b) Universal Resource Link
c) Uniform Reference Link
d) Universal Reference Locator
Ans: a) Uniform Resource Locator
Q.8: Which of the following is an Operating System?
a) MS Word
b) Windows
c) Google
d) Intel
Ans: b) Windows
Q.9: Which symbol is used to start a formula in MS Excel?
a) #
b) @
c) =
d) &
Ans: c) =
Q.10: What is the main purpose of phishing?
a) To increase computer speed
b) To steal sensitive information
c) To compress files
d) To remove viruses
Ans: b) To steal sensitive information
Q.11: What is the full form of LAN?
a) Large Area Network
b) Local Area Network
c) Long Area Network
d) Linked Area Network
Ans: b) Local Area Network

Q.12: What is the shortcut key to Close current document?

a) Ctrl + W

b) Ctrl + C
c) Ctrl + V
d) Ctrl + P

Ans: a)  Ctrl + W

Content Writer: Aman Gupta

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