The document traces the history and evolution of the computer mouse from its early inception in the 1960s by Douglas Engelbart as a bulky device with two perpendicular wheels to track motion, to later innovations like the ball mouse with rollers to detect movement, the optical mouse that detects motion with light, and more advanced mice like the laser mouse, gyroscope mouse, and evo mouse that track movement in innovative ways without balls or wheels.

1. EVO Mouse
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2. History of a mouse
In 1960’s a relatively unknown
inventor “Douglas Englebart”
wanted to created a way for people to
interact with a computer screen

3. First Mouse-1963
 Was a bulky device
 It has two wheels perpendicular to
each other
 The rotation of the wheel is translated
into a motion along one axis

4. Ball Mouse-1968
 It has two freely rotating rollers
 They are located 90 degrees each a part
 One roller detects forward backward
motion
 Another roller detects left-right motion
of the mouse

5. Optical Mouse
 Glows when movement is
detected
 It consists of light emitting diode
 Earliest Optical mouse- Mouse
pad
 Modern Optical mouse- Opaque
surfaces

6. Laser Mouse
 User laser beam rather than the ball tracking
the movement
 They have better tracking ability

7. Gyroscope Mouse
 It is used while the device is in air
 This mouse contains gyroscope
inside it
 This gyroscope tracks the
movement of the hand and
translated them into Cursor
movements

8. Evo Mouse
 It is a dog Shaped device
 Turns any surface into touch
pad
 Tracks your fingers and allows
you to perform any operation of
the mouse