UNIX 



1. Unix is multi-user, multi-tasking operating system.

2. Developed by ken Thompson & Dennis Ritchie.

3. Portability is not supported.

4. It comes in CUI as well as GUI.

5. Unix is proprietary software.

6. Source code of Unix is not available for anyone.

7. Unix takes the longer time as compare to the Linux to detect      the threads.

8. Versions of Unix are HP-UX, AIS, BSD, etc.

LINUX

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1. Linux is a clone of Unix.

2. Linux source code is available for everyone.

3. Linux built by Linux Torvalds.

4. Linux threats detection is very fast as compare to Unix.

5. Linux is Portable.

6. Support the multi-tasking.

7. Versions of Linux are : Red-hat, Ubuntu, Solaris

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