| UNIX | LINUX |
| Source code is not available to public | Source code is available to general public |
| Used for servers, workstations and high end computers | Used for personal computer, game development etc |
| Expensive | Free |
| High end hardware is required | No high end hardware is required |
| Uses command line interface | Uses command line interface and GUI |
| e.g Solaries, HP UNIX etc. | e.g. Ubuntu, Fedora |
| Can only be used by copyrighters | Can be used publicly |
| 1970 | 1991 |
| Developed by AT&T | Developed by open-source development |
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