4th Class Computers Science Computer and Its Peripherals Mouse

   Mouse  

A mouse is a pointing device with a roller on its base. A mouse makes the process of navigating the screen much easier than trying to use just a keyboard. A mouse controls the movement of a pointer (also called mouse pointer) on the screen. When a mouse moves on a flat surface, the cursor on the screen also moves in the direction of the mouse's movement. A mouse usually uses a ball, light or a laser to track movement.   The mouse is a small device used to point to a particular place on the screen and select in order perform one or more actions. It can be used to select menu commands, resize windows, start programs, etc. The most conventional kind of mouse has two buttons on top where the left one is used more frequently than the right one. The mouse helps us to 'point at' and 'input' data by Single Clicking, Double Clicking and Dragging with the Left Mouse Button and Single Clicking with the Right Mouse Button. A mouse is a pointing device where the mouse's motion typically translates into the motion of a cursor on a display, which allows the control of a GUI (Graphical User Interface). The name mouse, originated at the Stanford Research Institute because of its resemblance to the common mouse with a tail.  

 Alex and Bryan are discussing about mouse. Read their conversation and select whose statements are correct.

(1) Alex - A mouse is a common pointing device with a roller on its base. A mouse controls the movement of a pointer on the screen.

(2) Bryan - A mouse makes the process of navigating the screen much difficult than trying to use just a keyboard.

(A) (1) Alex is correct                                     

(B) (2) Bryan is correct

(C) 'Both (1) and (2) are partially correct

(D) Both (1) and (2) are correct                 

(E) None of these  

Answer: (a)

Explanation

Correct Option:

(A) The information given by Alex is correct.

Incorrect Options:

(B) The information given by Bryan is incorrect. Therefore, option (B) is incorrect.

(C) Alex is fully correct where as Bryan is fully incorrect. Therefore, option (C) is incorrect.

(D) Both of them are not correct. Therefore, option (D) is incorrect.

(E) Both of them are not incorrect. Therefore, option (E) is incorrect.      

 Fill in the blanks:

1. A mouse usually uses a ball, _______ or a ________ to track movement.

2. The most conventional kind of mouse has _______ buttons on top.

3. The __________ mouse button is used more frequently than the ________ one.

(A) Bat, laser, three, right, left                  

(B) Light, laser, two, left, right

(C) Beam, light, four, upper, lower          

(D) Ray, sound, one, top, down

(E) Light, ray, two, left, right  

Answer: (B)

Correct Option:

(B) Options given in (B) are correct.

Incorrect Options:

(A) Options given in (A) are incorrect. Therefore, option (A) is incorrect.

(C) Options given in (C) are incorrect. Therefore, option (C) is incorrect.

(D) Options given in (D) are incorrect. Therefore, option (D) is incorrect.

(E) Options given in (E) are incorrect. Therefore, option (E) is incorrect.