The Past , Present, and Future of Unix

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The Past, Present, and Future of UNIX
By

CIS 155 UNIX Operating System
March 4, 2012

Abstract
In the beginning, two men Ken Thompson and Dennis Ritchie in 1969 created an operating system that still has potential and relevance in today’s ever changing computer world, that operating system is called UNIX. I will be going over the past and present of UNIX and will also tell on how I feel about the future of UNIX. In the past, UNIX, a dominant operating system which pioneered the future of operating systems and how they are used today. Older platforms were written in assembly language which makes moving files around to different computers extremely difficult, when UNIX was created it was originally written in that same language but later changed to a high level language we all know today as C, there is only a small portion of the UNIX operating system that remain in assembly language and that is located in the kernel of the operating system. “Universities and colleges have played an important role in the popularity of the UNIX operating system. In 1975, Bell labs offered the UNIX operating system to educational institutions at minimal cost.”(Afzal, 2008)

Table of Contents
Abstract …………………………………………………………………………………2
Table of Contents ……………………………………………………………………….3
Introduction ……………………………………………………………………………..4
Past of UNIX …………………………………………………………………………....5
UNIX of today ………………………………………………………………………...5
Future of UNIX …………………………………………………………………………6
Conclusion ………………………………………………………………………………7
Bibliography …………………………………………………………………………….8

Introduction
UNIX has many tools at its disposal like line editors, application program interfaces, development environments, libraries, and documentation (Anthes, 2009). This makes UNIX a very powerful system and the best part about it all is it was written on a microcomputer. UNIX is a multitasking, multi user computer operating system. When UNIX was created it was written in assembly language which made it hard to port to other hardware and was later recoded in a high level language, they chose C as their language. UNIX and the programming language C were both designed and developed by AT&T and given to Universities and colleges. These programs were incorporated into the computer science curriculum, and students, in turn, became familiar with UNIX and it sophisticated programming environment (Afzal, 2008). There are two major versions of UNIX and a lot more that are based off of the two major versions, the two major versions include AT&T UNIX version V and Berkeley UNIX, other version which are based off of these two include Solaris, Solaris was the operating system of Sun Microsystems that was based on UNIX System V Release 2 and BSD. UnixWare, UnixWare there are two versions of UnixWare, UnixWare Personal Edition which was for desktops and UnixWare Application Server which was used on servers. Linux, Linux is a very close implementation of UNIX and conforms to many of the same standards that UNIX does (Afzal, 2008). There are many different versions of UNIX and all have the same objective in mind, some were designed to be used by the company that made it others were designed to work the same as UNIX and be cheaper to use but in the end they all operate like UNIX. Let’s look into the Past, Present and Future of the famous operating system that started it all.

Past of UNIX
UNIX was created on a smaller computer called the PDP-7 which was made by Digital Equipment Corporation. UNIX was basically a new operating system that took the good of all the other systems that they created like Multics. “Of course, UNIX' success didn't happen all at once. In 1971 it was ported to the PDP-11 minicomputer, a more powerful platform than the PDP-7 for which it was originally written. Text-formatting and text-editing programs were added, and it was rolled out to a few typists in the Bell Labs Patent department, its first...
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