Monday, February 28, 2011

mouse??

 hi alls!!!
meet me again here??
^^ (big smile)
like title that i told you just now
for this post i will talk about mouse!!

not this!! but like below!!

mouse
is pointing device that functions by
detecting two-dimensional motion relative
to its supporting surface
================================
come!! 
we search more about inside the mouse!!

The guts of a mouse
The underside of the mouse's logic board: The exposed portion of the ball touches the desktop
The rollers that touch the ball and detect X and Y motion
A typical optical encoding disk: This disk has 36 holes around its outer edge.
A close-up of one of the optical encoders that track mouse motion: There is an infrared LED (clear) on one side of the disk and an infrared sensor (red) on the other.
The logic section of a mouse is dominated by an encoder chip, a small processor that reads the pulses coming from the infrared sensors and turns them into bytes sent to the computer. You can also see the two buttons that detect clicks (on either side of the wire connector).
A close-up of one of the optical encoders that track mouse motion: Note the piece of plastic between the infrared sensor (red) and the encoding disk.
see more here!!

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