The color code used for PS/2 mouse connections is green. This standardization was introduced with the PC 97 standard to make it easier for users to identify and correctly connect their computer peripherals.
Evolution of PS/2 Connector Colors
Initially, PS/2 connectors did not adhere to a universal color scheme. Original PS/2 connectors and their corresponding ports were typically black, or they matched the color of the connecting cable, which was often white. This lack of a standardized color could sometimes lead to confusion when connecting multiple peripherals.
The PC 97 Standard and Color Coding
To simplify the process of connecting keyboards and mice, the PC 97 standard established a specific color-coding system for PS/2 ports and plugs. This initiative aimed to create a more user-friendly experience by providing a visual guide for proper setup.
Under the PC 97 standard:
- The PS/2 port for a keyboard, and the plugs on compliant keyboards, were designated purple.
- The PS/2 port for a mouse, and the plugs on compliant mice, were designated green.
This standardized color scheme ensures that users can quickly and accurately connect their PS/2 mouse to the correct port on their computer, preventing connection errors and ensuring proper functionality.
Summary of PS/2 Color Codes
| Peripheral | Port/Plug Color |
|---|---|
| Keyboard | Purple |
| Mouse | Green |
This clear distinction became a widely adopted convention, making it easy to differentiate between the two types of PS/2 connections at a glance.
