| 呼び方 | 意味 |
| Windows XP | Microsoft(R) Windows(R) XP Proffesional Operating System およびMicrosoft(R) Windows(R) XP Home Edition Operating System |
| Windows 2000 | Microsoft(R) Windows(R) 2000 Proffesional Operating System |
| Windows Me | Microsoft(R) Windows(R) Millenninum Operating System |
| Windows 98 | Microsoft(R) Windows(R) 98 Operating
System および Microsoft(R) Windows(R) 98 Second Edition Operating System |
| Windows XP/2000 | Windows XP およびWindows 2000の総称 |
| Windows Me/98 | Windows MeおよびWindows 98の総称 |
| Windows | Windows XP/2000、Windows Me/98の総称 |