| Word | Description |
| Operating System | The operating system is the underlying software that ties together the software drivers and applications and allows them to run together. Examples of operating systems include Windows 98, Windows ME, Windows 2000, Windows XP and XP Pro. The operating system instructs the computer how to handle applications and hardware. Updates to operating systems are released on a regular basis to deal with system stability, to add features and, most importantly, to deal with significant security issues discovered in the operating system after the software was released. |