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1. Unknown History & revolutionary
change of Mouse
Created by
ABDUR ROUF
Email : abdurroufsheikh185@gmail.com

2. 
MOUSE

3. 
MOUSE
• Essential input
Device for modern
computers
• Allows Graphical
user interface
• Pointing
Device (hand
control)

4. 
The mouse was invented by Douglas Engelbart in 1964 and
consisted a wooden shell, circuit board and
two metal wheels that came into contact with the surface it was being used on.
History

5. 
It was 8 years later in 1972 that Bill English
developed the design further by inventing what is
known as the "Ball Mouse" that we know today.
The ball replaced the wheels and was
capable of monitoring movement in any direction.
The ball came into contact with two rollers that in
turn spun wheels with graduations on them that
could be turned into electrical pulses representing
direction and speed.
History

6. 
Rear view of Ball Mouse
Ball Mouse

7. 
• Most ball mice movement directly depend on
surface. If the surface is rough, it won’t work
properly.
• It is not easy to move as we wish.
• Sometimes , It needs trackball lubricants.
• Needs mouse pad.
For removing these problems finally we have got
Optical Mouse.
Some Problems of Ball
Mouse

8. 
An optical mouse was developed in around
1980, eliminating the ball which often became
dirty from rolling round the desktop,
negatively affecting its operation. In 1988, US
patent no. 4751505 was issued for an optical
mouse invented by Lisa M. Williams and
Robert S. Cherry, which was to be sold
commercially with Xerox products, such as the
Xerox STAR.
Optical Mouse

9. 
Rear view of Optical Mouse
Optical Mouse

10. # Modern optical mouse is surface-independent.
# It is easy to move as we wish.
# It needs no Trackball Lubricants.
# It needs no mouse pad.
# User can move it like a pen.
# It covers total monitor easily.
But it is connected with PC by a wire. So that user can’t
use it from any place. For removing this problem , we
have finally got wireless mouse which is the highest
invention in this sector.
Some Facilities of Optical
Mouse

11. 
Wireless Mouse

12. 
The End