Trackball

A Trackball

Trackball:

1.      The first trackball was invented by Tom Cranston and Fred Longstaff in 1952.

2.      A trackball is an input device.

3.      A trackball is a pointing device.

4.      A trackball is almost like a mouse.

5.      Trackball has more speed.

6.      No need more services.

7.      It can be mounted on either side of the keyboard.

8.      No needs for any track-pad like mouse need mouse-pad.

9.      It is most suitable for playing game.

10.   Not comfortable to fast pace games.

11.   Trackball is a good for locations where a mouse couldn’t move enough.

12.   Trackball buttons are well designed that provide rest while performing task by this device.

13.   It is more comfortable for user’s wrist and palm.

14.   The user controls the cursor for the screen by rolling a plastic ball with a finger-tip or wrist.

15.   It is not easy to use because trackball’s cursor performs more activities while spinning ball with lightly because it has more accessibility.

16.   If your hands have small then user can face more difficulties to operating this device.

17.   It has four or more buttons for the execution of commands.

18.   It is mostly used and suitable for laptop computers when space is limited.

19.   Trackball is useful for handicapped people who face difficulty of movement of arm.

20.   Require more frequent cleaning to remove finger oils.

21.   Trackball is more expansive than mouse.

22.   There are two major types of trackball such as serial and parallel interface trackball.

A First Trackball Mouse, invented by Tom Cranston and Fred Longstaff in 1952