What is a Joystick ?

• Joystick is a pointing device which is works on the same principle of track ball.
• It contains a stick which is placed on the spherical ball.
• The stick is used to move the cursor at desired position left or right or backwardor forward.
• It also contain button that is clicked to make selection of currently pointed item.
• A joystick is similar to a mouse, except that with a mouse the cursor stops moving as soon as you stop moving the mouse.
• With a joystick, the pointer continues moving in the direction the joystick is pointing.
• To stop the pointer, you must return the joystick to its upright position.
• Some of the systems using joysticks are
  o Aircrafts, UAVs for flight control
  o Motorized Wheelchairs as input device
  o Microscopes
  o Submarines
  o Security Systems
  o Video Games
• Joysticks are widely used for video games

Advantages of joystick :- 

• It is very easy to learn to use.
• Very simple design so they can be inexpensive.
• It has a big analogue stick in the middle so it’s easier to control.

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Basic Computer Questions

Q : The main system board of the computer is called ____.
(A) Motherboard
(B) Processor
(C) Microchip
(D) None of these

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Q : Which of the following system components is the brain of a computer?
(A) Circuit board
(B) CPU
(C) Memory
(D) Network card

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Answer ⇒ { B }

 
Q : What is the built-in permanent memory in a computer called?
(A) RAM
(B) ROM
(C) CPU
(D) CD-ROM

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Answer ⇒ { B }

 
Q : Which of the following is the full form of NTFS?
(A) New Tree File system
(B) New Technology file system
(C) New Table file system
(D) Both B and C

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Answer ⇒ { B }

 
Q : Which of the following is not a hardware processing chip ?
(A) Processing chip
(B) printer
(C) mouse
(D) Java

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Answer ⇒ { B }

 
Q : The monitor of a computer is-
(A) storage device
(B) processing device
(C) input device
(D) output device

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Answer ⇒ { D }

 
Q : Which protocol does Ping use?
(A) TCP
(B) ARP
(C) ICMP
(D) BootP
(E) None of these

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Answer ⇒ { C }

 
Q : If you wish to extend the length of the network without having the signal degrade, you would use a ___.
(A) Gateway
(B) Router
(C) Modem
(D) Repeater
(E) Resonator

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Answer ⇒ { D }

 
Q : A series of instructions that tells a computer what to do and how to do it is called a ______.
(A) program
(B) command
(C) user response
(D) processor
(E) None of these

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Answer ⇒ { A }

 
Q : Verification of a login name and password is known as_____.
(A) Configuration
(B) Accessibility
(C) Authentication
(D) logging in
(E) None of these
Answer ⇒ ??