OS-Unix -History and Features

UNIX -HISTORY  Uniplex Information Computing System operating system  Developed at bell laboratories  Designed by ken Thomson in the lat...

UNIX -HISTORY
  •  Uniplex Information Computing System operating system
  •  Developed at bell laboratories
  •  Designed by ken Thomson in the late 1960’s
  •  Unix has been chosen since it is powerful, multiuser, multitasking system. Actually unix was derived from Multics.
  •  Around 1973, unix was rewritten using c by Dennis Ritchie.
  •  Around 1976, Unix version 6 was released outside bell labs.
  •  In 1979, AT&T issued a new version called the unix time sharing system version 7, which supports large files & came with a new extended version of c and a new shell.
  •  In 1980, Microsoft issued its own version of unix called xenix. In other development university of California developed unix for distributed system with the version no 4.1 BSD(Berkeley s\w distribution)
  •  By 1982, AT&T offering is system V release 4(SVR4)
Standards related to Unix are

AT&T system v interface definition(SV 10)
  •  Published in 1985 – supports system calls, library routines & utility specifications.
  •  POSIX – Portable Operating System Interface, defines interface between the unix kernel and the c language.
  •  XPG3 – x\open co ltd defines a common application environment for unix called XPG3.
  •  ANSIC – standards based on interface definitions for c program system.
Features of unix

Unix is a powerful multiuse multi tasking system.
  •  supports rich set of program developed aids like c compiler, make compiler construction tool like yacc & lex etc..
  •  text formatting tools like textedi toss : vi, & emacs, document : nroff & troff.
  •  E – mail.
  •  Source code maintenance system.
  •  Implemented widely using c hence portable to wide range of computers.
  •  Simplified treatment of file & device occurs.
  •  User interface for programmers & online users.
  •  Supports highly recurred access of information.
Name

ADO,131,ASP,3,C++,61,CORE JAVA,1,CSS,115,HTML,297,index,5,JAVASCRIPT,210,OS,47,PHP,65,SAD,53,SERVLETS,23,SOFTWARE ENGINEERING,245,SQL,71,TCP/IP,1,XHTML,9,XML,18,
ltr
item
Best Online Tutorials | Source codes | Programming Languages: OS-Unix -History and Features
OS-Unix -History and Features
Best Online Tutorials | Source codes | Programming Languages
https://www.1000sourcecodes.com/2012/09/os-unix-history-and-features.html
https://www.1000sourcecodes.com/
https://www.1000sourcecodes.com/
https://www.1000sourcecodes.com/2012/09/os-unix-history-and-features.html
true
357226456970214079
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content