1SunOS
2BeOS
3CentOS
4Debian_Linux
5Fedora
6FreeBSD
7HP-Unix
8IRIX
9iPhone_OS
10Mac_OS
11Mandriva
12NetBSD
13OpenBSD
14OSF
15OS/2
16Plan9
17Red_Hat
18SunOS
19Symbian_OS
20SUSE_Linux
21Ubuntu_Linux
22Unix
23Linux
24Windows_3.11
25Windows_95
26Windows_98
27Windows_2000
28Windows_XP
29Windows_Server_2003
30Windows_Vista
31Windows_7
32Windows_NT
33Windows_ME
34Windows_CE
35