Tuesday, June 3, 2008

Peripheral

We had to do a write up, a diagram and a chart for some type of computer peripheral a while back, so I chose the optical mouse. I learned a bit more about how they work, which probably won't help me to much in the future, but still it won't hurt to know. I didn't fully complete the written portion of the assignment, but I did complete the diagram and the chart.

Optical Mouse Write Up


The first optical mouses were introduced in 1980. At the time, there were only two different varieties of the optical mouse. One type used an inferred LED sensor and a special metallic pad to detect its position, and predictive algorithms to detect the speed at which the mouse is moving. Steve Kirsch of Mouse Systems Corporation invented this type of optical mouse.
Richard F. Lyon invented the second type of optical mouse introduced in 1980. He sold this mouse through the company Xerox. The difference between this mouse and Steve Kirsch’s mouse is that this mouse uses a 16-pixel visible-light image sensor. This means that the sensor on this mouse detects change in motion light dots on your mouse pad. The major difference between the two is that Lyon’s mouse would function normally if the mouse pad or the mouse itself were rotated, while Kirsch’s did not.