Monday, March 11, 2019

The Past , Present, and Future of Unix

The Past, Present, and upcoming of UNIX By CIS 155 UNIX Operating establishment touch 4, 2012 Abstract In the beginning, two men Ken Thompson and Dennis Ritchie in 1969 created an operational system that soundless has potential and relevance in directlys ever changing computer universe of discourse, that operate system is c e very(prenominal)ed UNIX. I lead be going over the past and lay of UNIX and allow overly tell on how I feel about the future tense of UNIX. In the past, UNIX, a dominant in operation(p) system which pioneered the future of operating systems and how they argon workd like a shot.Older platforms were written in assembly lyric poem which makes moving files around to several(predicate) computers extremely difficult, when UNIX was created it was origin all toldy written in that same diction but ulterior changed to a high level manner of speaking we all know today as C, there is only a base 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 Copernican 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) circuit card of Contents Abstract 2 Table of Contents . 3 interpolation .. 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 political platform nterfaces, development environments, libraries, and documentation (Anthes, 2009). This makes UNIX a very sizeable system and the crush 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 make 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 civilize programming environment (Afzal, 2008). There are two study versions of UNIX and a lot more that are found off of the two major versions, the two major versions overwhelm 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 corpse V Release 2 and BSD.UnixWare, UnixWare there are two versions of UnixWare, UnixWare Personal interpretation which was for desktops and UnixWare Application Server which was apply on servers. Linux, Linux is a very obturate 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 obj ective in mind, some were designed to be used by the company that made it others were designed to ferment the same as UNIX and be cheaper to use but in the goal they all operate like UNIX.Lets look into the Past, Present and Future of the famous operating system that started it all. Past of UNIX UNIX was created on a littler computer called the PDP-7 which was made by Digital Equipment Corporation. UNIX was basically a sensitive operating system that took the good of all the other systems that they created like Multics. Of course, UNIX achiever didnt 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 users outside the development team. (Anthes, 2009). The first commercial message instance of UNIX worldwide was installed in early 1972 at New York a nticipate Co. Systems Development Center under the direction of Dan Gielan. An Operational Support System was developed entirely in assembly language by Neil Groundwater and it survived tight 7 years without change. UNIX did have a rough start in the first few years of its life and AT&T was interdict from entering the computer business by a 1958 decree, which wouldnt surrender UNIX to become a product. By 1983 AT&T and Bell systems were grim up which alleviated their problem with the decree, AT&T rushed to merchandise the UNIX system and that move nearly destroyed UNIX. Through the life of UNIX all of its up and downs it is still considered a very powerful Operating System and is still in use by some companies and also working with some systems like Mac OS.UNIX of Today UNIX has been around for almost 43 years and still is in use by programmers and some operating systems like MAC OS. There are many versions of UNIX most jibe UNIX in some way or another which goes to show that this platform is still playing a strong part in todays ever changing computer world. All these years later there are many different Applications that are UNIX, UNIX based or a completely different operating system that resembles UNIX. Minix incorporated all the ideas of UNIX, and it was a brilliant job, Salus reads. Only a major programmer, someone who deeply understood the internals of an operating system, could do that. Minix would become the starting point for Linus Torvalds 1991 conception of Linux if not exactly a UNIX clone, certainly a UNIX look-alike. (Anthes, 2009). From some of my query it seems that Linux is the Operating System of choice its a lot cheaper to use and has a very strong resemblance to UNIX and a lot of the commands used by UNIX are incorporated into the Linux OS.Some of the UNIX variants were dying out only Solaris, HP-UX and genus Aix were still doing fairly well in the market. A lot of lawsuits began in the early 2000s which started actions once mor est users and vendors of Linux, the SCO group stated that Linux contained copyrighted UNIX code now have by the SCO group, this began the SCO vs. Novell lawsuit, ATT sold all rights of the UNIX system to Novell which gave him all the copyrights. The case was decided in Novells favor that he owned the copyrights to UNIX and UnixWare.After the string of lawsuits Novell stated that he had no interest in suing sight over UNIX. Future of UNIX UNIX may still be prevalent in todays computer world but what about the future will it be as strong as it is or has been, with multicore processors and cheaper operating systems like Linux and Windows x86, we may see companies moving away from UNIX. The results reaffirm go a grand enthusiasm for Linux as a host server platform, with Windows similarly growth and UNIX set for a long, but gradual, decline, says the poll report, published in February 2009. UNIX has had a long and lively past, and while its not going away, it will increasingly be und er pressure, says Gartner analyst George Weiss. Linux is the strategic UNIX of choice. Although Linux doesnt have the long legacy of development, tuning and stress-testing that UNIX has seen, it is approaching and will soon equal UNIX in performance, dependableness and scalability, he says (Anthes, 2009).Even with Linux approaching performance and reliability I have effectuate another suggestion saying that UNIX wont be attenuation away anytime soon I found this survey report to be interesting. Of the 211 respondents, 130 (62%) reported using UNIX in their organizations. (Most survey responses are based on input from the latter. ) Of the respondents whose companies use UNIX, 69% indicated that their organizations are extremely reliant or very reliant on UNIX, with another 21% depiction their organizations as somewhat reliant on UNIX. 0% responded that they were not very reliant or not at all reliant on UNIX as an OS (Keefe, 2009). From the research I have gathered I am getting mixed reviews on the Future of UNIX but my goats rue instinct tells me with the recent MAC OS bear that UNIX is here to balk now in my opinion the only thing that would needed to be done is to allow the operating system to work with multicore processors then UNIX would again be a force to reckon with.Conclusion UNIX has had a very long life span for an operating system and has always played a very important part in or computer world we know today from my report I see that UNIX has been with a lot from being developed to almost dying out to having lawsuits for copyrights and through all this UNIX is a very powerful operating system that has made it through every obstacle thrown in its path. The future is still truly unknown about UNIX even with he recent support that it has gained and with all the competition in its market it is really hard to say whether or not UNIX will be around or if it will die out, I can say that regardless of future if UNIX was neer created we may not hav e the computer systems we have today. Bibliography Anthes,G (2009) Unix turns 40 The past, present and future of a revolutionary OS Afzal, Amir (2008) UNIX Unbounded A beginning Approach, Fifth Edition. Keefe, M (2009) Survey Unix has a long and rubicund future, say users http//en. wikipedia. org/wiki/Unix

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