| Term ID | Term Name |
|---|---|
| 1 | DOS |
| 2 | Windows |
| 2.1 | Windows 3.X |
| 2.2 | Windows 95 |
| 2.3 | Windows 98 |
| 2.4 | Windows Me |
| 2.5 | Windows NT |
| 2.6 | Windows 2000 |
| 2.7 | Windows 2003 Server |
| 2.8 | Windows XP |
| 2.9 | Windows VISTA |
| 3 | Linux |
| 4 | Unix |
| 5 | Solaris |
| 6 | OS2 |
| 7 | Mac |
| 7.1 | System 6 |
| 7.2 | System 7 |
| 7.3 | Mac OS 7.x |
| 7.4 | Mac OS 8.x |
| 7.5 | Mac OS 9.x |
| 7.6 | Mac OS X |
| 7.7 | Mac OS X Server |
| 8 | Mobile |
| 8.1 | Palm OS 1.x |
| 8.2 | Palm OS 2.x |
| 8.3 | Palm OS 3.x |
| 8.4 | Palm OS 4.x |
| 8.5 | Palm OS 5.x |
| 8.6 | Windows CE 1.x |
| 8.7 | Windows CE 2.x |
| 8.8 | Pocket PC |
| 8.9 | Pocket PC 2002 |
| 8.10 | Pocket PC 2003 |
| 8.11 | Celvic OS |
| 8.12 | EPOC (Psion OS) |
| 8.13 | Symbian |
| 8.14 | Windows Mobile 2003 Phone Edition |
| 9 | Embedded OS |
| 9.1 | Windows CE |
| 9.2 | Embedded Linux |
| 9.3 | Embedded Java |
| 10 | RTOS (Real Time OS) |
| 10.1 | pSOS |
| 10.2 | OS-9 |
| 10.3 | VxWorks |
| 10.4 | QNX |
| 10.5 | VRTX |
| 10.6 | Nucleus |
| 10.7 | Qplus |
| 10.8 | Lynx |
| 10.9 | RT-Linux |