Mouse (PS/2) pinout diagram @ pinouts Data transmission from the mouse to the computer is done as in figure 1, each clock period is usually between 70 to 150 microseconds (10 to 25 microseconds for transitions and 30 to 50 microseconds for high or low state), some may feel that these are large margins both this works good since this is a synchronous port (this also helps cut on the cost of high precision clocks).3.8/5(16) Computer Connection Diagram - how-to-wire-it These type connectors are for your keyboard and mouse connections. They are typically color coded so they are not inserted into the wrong ports on the computer. The PS/2 ports on the computer are identical to one another so be sure to match up to the proper color codes. The keyboard port is purple and the mouse or other pointer device is green. Computer Wiring: How to Connect Your Computer Wires Take note of the connection to the left of the all the computer wiring connections. This is the USB connection from the computer case. This is where you will plug in any external USB ports, like the ones on the front of your computer case, or a USB bracket, as shown further down. Diagram of computer mouse - Answers block diagram of computer optical mouse The wiring that goes from your computer mouse to the back of the computer or the usb port depending on the gae of the computer and mouse.