●●● ●●●● History of∪NX/ Linux ●●●●● ●●●● 1969 Unics, by Ken Thompson at Bell Laboratory, runs on Digital Equipment PDP-7 ●●●● Multics, developed by bell, MIT and general electric 1970 Unics moved to PDP-11/20 Ritchie designed and wrote first C compilerfor UNIX 1973 Ritchie and Thompson rewrote UNIX kernel in C 1975 Sixth Edition(V6)was released 1978 first version of BSD was built by Bill Joy, University of California, Berkeley(UCB) 1979 Seventh Edition(V7)was released and implemented on DEC PDP-11, the Interdata 8/32, and the AX. first VAX version of BSD (3BSD)was released 1980 Bill ported the 32V version of UNIX to dEC's vaX machine 4BSD was released 19814.1BSD was released 1983 System V developed by AT&T based on V7 was first released. 4. 2BSD was released 1984 AT&T start market UNIX hardware and software SystemV release 2 X was developed by MIT as part of Project Athena 1986 SystemV release 3 198743BSD was released 1988 BSD Networking Release 1 X Consortium was formed. the aim is to formulate the generally accepted standard in X 1989 System V release 4(SVR4)largely written by SUN Microsystems, included many features in BSD 1990 AT&T established UNIX System Laboratory(USL) for marketing System V and handle license andHistory of UNIX / Linux 1969 Unics, by Ken Thompson at Bell Laboratory, runs on Digital Equipment PDP-7. Multics, developed by Bell, MIT and General Electric 1970 Unics moved to PDP-11/20 Ritchie designed and wrote first C compiler for UNIX 1973 Ritchie and Thompson rewrote UNIX kernel in C 1975 Sixth Edition (V6) was released 1978 first version of BSD was built by Bill Joy, University of California, Berkeley (UCB). 1979 Seventh Edition (V7) was released and implemented on DEC PDP-11, the Interdata 8/32, and the VAX. first VAX version of BSD (3BSD) was released 1980 Bill ported the 32V version of UNIX to DEC's VAX machine 4BSD was released 1981 4.1BSD was released 1983 System V developed by AT&T based on V7 was first released. 4.2BSD was released 1984 AT&T start market UNIX hardware and software. System V release 2 X was developed by MIT as part of Project Athena 1986 System V release 3 1987 4.3BSD was released 1988 BSD Networking Release 1 X Consortium was formed. The aim is to formulate the generally accepted standard in X 1989 System V release 4 (SVR4) largely written by SUN Microsystems, included many features in BSD 1990 AT&T established UNIX System Laboratory (USL) for marketing System V and handle license and further development