Mouse+(Optical)

=My Device= **Optical Mouse** Lyah Wright



= //__Purpose__// =

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**//The purpose of an Optical Mouse is to project a cursor on the screen by a solid substance device that allows the flow of light current in one direction using movement. It is also used to control the cursor on a computer better and efficiently. //** ======

// Energy //
//The light emitting diode pulses a light on to a surface which then bounces back into the complimentary metal oxide semiconductor (CMOS) which converts it into a picture which is then sent to a digital signal processor (DSP). When multiple pictures come into the digital signal processor it measures the different patterns from each picture and then calculates how far the mouse has moved. Once it calculates the movement of the mouse it sends the exact coordinates to the computer telling it to move to that point on the screen.//

//Controls//
//There are three main censors in an optical mouse. They are a light emitting diode, complimentary metal oxide semiconductor, and a digital signal processor.//

** //Materials// ** //**A light-emitting diode (LED)**- solid substance device that glows when a voltage is applied //**A digital signal processor (DSP)**- a specialized microprocessor, which incorporates all the functions of a computer's central processing unit on a microchip//
 * A complimentary metal oxide semiconductor (CMOS)**- technology chip//

// Science //
//The scientific principal is the movement of the mouse to the movement of the cursor on the screen. The mouse measures distance traveled and converts that to how far the cursor needs to move on the screen.//

//Design//
//A typical optical mouse has a cupped like plastic cover over all the materials that are inside. Connected to one of the parts inside is a cord that connects to the computer. Some optical mice have either a scrolling wheel or just the light emitting diode to touch that senses the surface.//

//Evolution//
//There have been many changes or evolutions from the trackball mouse to the optical mouse. This includes a LED instead of a trackball. Another evolution is that dirt cannot get into the mouse which would damage the trackball.//

Competitors
//Other devices that serve a similiar purpose is the trackball mouse. Mouse (Trackball)//

Partners
//Other devices that work in conjuction with this device is a keyboard, computer monitor, and a computer. Computer Keyboard//

Siblings
//Another device that uses the same scientific principal are a trackball mouse. Mouse (Trackball)//