1. The Mouse and Keyboard
By Zach Postma

2. The Computer Mouse

3. What it is
A device used to move a pointer around a screen, it also has one or more buttons to interact with whatever it is pointing at.

4. How the basic mouse ball works
When you move the mouse, a small ball inside is rolled.
Touching the ball are two perpendicular rollers, when the ball is moved the rollers spin various amounts and speeds depending on what direction and how fast the mouse is moved.
The rollers are connected by a shaft do a small disk with many holes in it. When the rollers spin, the disks spin.

5. How it works cont.
On opposite sides of the disks there are LED’s and infrared sensors: one for each disk. When the disks spin the light pulses into the sensors through the holes, this pulsing directly corresponds to the movement of the mouse.
The DSP (Digital Signal Processor) in the mouse changes the information from the sensors into binary data that the computer can understand and the computer moves the pointer using that data.

6. Other types of mice Optical Mice LED mouse Laser mouse
Uses a small LED light and a sensor
Laser mouse
Uses a small laser and a sensor
Blue Track mouse
Uses a powerful blue laser and a sensor

7. Other types of mice cont.
Connection methods
How it hooks up to the computer
Ps/2 connector
Old connector: better than USB
USB connector
New connector
Wireless
Usually uses USB, more mobile but requires batteries and the connection is not always as good

8. History of the mouse 1968-Douglas Engelbart creates the first mouse
1981-The Xerox 8010 was one of the first home computers to include a mouse
1991-Logitech releases the Cordless Mouseman, the first wireless computer mouse
1995-The ProAgio, the first mouse with a wheel, is invented
1996-The Microsoft Intellimouse was invented, it was the first mouse with a button under the scroll wheel like we use today

9. History of the mouse cont.
1998- Logitech creates the first USB mouse
1999- Logitech creates the first optical mouse
2001-Logitech introduces the first cordless optical mouse
2004-Logitech introduces the first laser tracking mouse

10. Mouse manufacturers
Logitech
Microsoft
Apple
Mouse Systems

11. The Keyboard

12. What it is
The keyboard is a device that lets you input letters numbers and symbols into the computer and communicate with it

13. How it works You press a key
Pressing the key completes a circuit inside of the keyboard
The processor inside the keyboard compares the location of the completed circuit to that location in it’s character map
The keyboard transmits the character to the computer

14. Types of Keyboards Keys: Connection: Capacitive Rubber dome
Metal contact
Foam element
Membrane
Connection:
Wires
Wireless
Infrared
Radio
Bluetooth

15. Types of Keyboards cont.
Compact
Ergonomic
Special
Internet
Multimedia
Gaming
Backlit
Virtual

16. Types of keyboards cont.
Key setups
QWERTY
DVORAK
ABCDE
QWERTZ
AZERTY

17. History of the Keyboard
1877-The typewriter is invented
Finger typing is created
QWERTY is created
1936-DVORAK is invented
1984-The first keyboard is invented

18. Manufacturures
AOpen
Creative
Logitech
Microsoft
Saitek

19. Prices
Mouse
$4-$24,300
Keyboard
$2.59-$4440

20. Bibliography http://www.freefoto.com/preview/04-34-12?ffid=04-34-12

21. Bibliography cont. http://www.interfacebus.com/Computers_Mouse.html

22. Bibliography cont. http://www.howstuffworks.com/keyboard.htm