What is the difference between UNIX and LINUX?

UNIX is an operating system that was designed in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others, thus making it older than LINUX, which was developed by Linus Torvalds in 1991. Another major difference between the two is that UNIX is a proprietary software developed, maintained and updated by AT&T, whereas LINUX is an open source software that is free to use, develop and modify.

UNIX

LINUX

Developed in the 1970s

Developed in 1991

Developed by Ken Thompson, Dennis Ritchie, and others at Bell Labs

Originally developed by Linus Torvalds

Developed, maintained and updated by AT&T developers

Open source, hence Developed, maintained and updated by the community, and overseen by Linus Torvalds

Proprietary software

Open source, i.e. free to use

Source code not available

Source code freely available

Commonly used in internet servers, workstations and PCs by Solaris, Intel, HP, etc.

Widely used for computer hardware and software, game development, tablet PCS, mainframes, etc.

Works primarily on Command Line Interface

Works on both Command Line Interface and Graphical User Interface (GUI)

Not as flexible as Linux

Quite Flexible

Less compatible with different types of hardware

More compatible with different types of hardware

Supports fewer File systems

Supports more File systems

Installation requires strict and well-defined hardware machinery and works only on specific CPU machines.

Is fluid and agile, hence can be installed and executed on almost anything that has a processor.

Not portable

Is portable and can be executed in different Hard Drives.

Different Versions of Unix are: AIS, HP-UX, BSD, Iris, etc.

Different Versions of Linux are: Ubuntu, Debian, OpenSuse, Redhat, Solaris, etc.

The Filesystems supported by Unix are as follows: zfs, js, hfx, gps, xfs, gps, xfs, vxfs.

The Filesystems supported by Linux are as follows: xfs, ramfs, nfs, vfat, cramfsm ext3, ext4, ext2, ext1, ufs, autofs, devpts, ntfs

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