History of Linux

     It all started in 1965 with MULTICS (Multiplexed Information and Computing System) in Cambridge, Massachusetts. MULTICS is an early and influential time sharing Operating System, based on single level memory concept.

       First UNIX system was created in 1973 by Dennis Ritchie (who used 80% of C language) and Ken Thompson (who used 20% Assembly Language). In 1979 Dennis Ritchie created his own version.

        UNIX (initially called as UNICS – Uniplexed Information and Computing System) was created in 1973 at the Bell Labs Research Center by Ken Thompson and Dennis Ritchie and it was for commercial use. Followed by UNIX other companies like Sun, HP, and IBM created their own versions.

SUN	Sun Solaris.
HP	HP-UX (Hewlett Packard).
IBM	AIX (International Business Machine).
SCD	SCO-UNIX (Santacruze).
BSD	Free BSD (Berkeley Software Distribution).
SG	IRIX.

            There is a version of UNIX is called as MINIX (MINI + UNIX = MINIX) which is created by Andrew S. Tanenbaum. Using C program he created 12000 lines code. Buying MINIX by Linus Benedict Torvalds who was the student of second year computer science, studied in University of Helsinki. He created Kernel (source code) and sent to people by email through “123people.com” which is a social networking site like “facebook.com”.

Free Software Foundation (FSF).

           The Free Software Foundation (FSF) is a non-profit organization founded by Richard Stallman in 1985 who supporting free software development. Under FSF he created GNU (not a Linux). GNU is an operating system. GNU is made of wholly free software and licensed under the GNU projects GPL. Richard Stallman created Tools, Software, Applications, and Utilities.

                Both Linus Torvalds and Richard Stallman comes together and created an operating system called as Linux OS (Free – Free means Freedom). And this Linux which is able to modify and edit. Using Linux source codes Red Hat created the new modified OS.

Red Hat Versions

Red Hat 1, Red Hat 2, Red Hat 3, Red Hat 4, Red Hat 5, Red Hat 6, Red Hat 7, Red Hat 8, Red Hat 9.

Then Red Hat created its commercial versions.

Red Hat 1, Red Hat 2, Red Hat 3, Red Hat 4, Red Hat 5, Red Hat 6.

Fedora Core Version 1 to 27 (and 28 is beta version) are the free versions of Red Hat.


Also Read:

• Comparison of Windows and Linux.
• Features of Linux.
• What is Linux?
• What is Operating System?

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