40+ Operating systems written in C programming !!

40+ Operating systems written in C programming !!

1. DDC-l
2. DG/UXOpenVMS
3. Ultrix
4. HP-UX
5. Enea OSE
6. Google Chrome OS
7. Android
8. HP-UX 11i
9. z/OS
10. AIX (Advanced Interactive Exective)
11. OpenSolaris
12. OS/2
13. IBM Academic Operating System
14. ICL VME (Virtual Machine Entertainment)
15. MicroC/OS-III
16. WindowsNT
17. Windows CE
18. Singularity Operating System
19. RTXC Quadros
20. OS-9
21. Solaris
22. UNIX
23. Minix
24. BSD Unix
25. Darwin
26. Linux
27. OpenIndiana
28. ReactOS
29. Inferno
30. MorphOS
31. EmuTOS
32. iOS
33. Maemo
34. Windows Phone
35. iPoadLinux
36. Rockbox
37. eCos
38. ThreadX
39. Unix
40. AmigaOS
41. Mint (Mint is now Tos)