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In the following file all references made to the name Unix may also besubstituted to the Xenix operating system Brief history Back in the early sixties during the development of thirdgeneration computers at MIT a group of programmers studying the potential ofcomputers discovered their ability of performing two or more taskssimultaneously Bell Labs taking notice of this discovery provided funds fortheir developmental scientists to investigate into this new frontier Afterabout 2 years of developmental research they produced an operating system they Sixties to Current During this time Bell Systems installed the Unix systemto provide their computer operators with the ability to multitask so that theycould become more productive and efficient One of the systems they put on theUnix system was called Elmos Through Elmos many tasks ie billingandinstallation records could be done by many people using the same mainframe Note Cosmos is accessed through the Elmos system Current Today with the development of micro computers such multitaskingcan be achieved by a scaled down version of Unix but just as powerfulMicrosoftseeing this development opted to develop their own Unix like systemfor the IBM line of PCXTs Their result they called Xenix pronouncedzee-nicks Both Unix and Xenix can be easily installed on IBM PCs and offerthe same functions just 2 different vendors Note Due to the many different versions of Unix Berkley Unix Bell SystemIII and System V the most popular many commands following maymay not work Ihave written them in System V routines UnixXenix operating systems will be How to tell ifif not you are on a Unix system Unix systems are quite commonsystems across the country Their security appears as such When hacking on a Unix system it is best to use lowercase because the Unixsystem commands are all done in lower- case Login is a 1-8 character field It is usually the name ie joe or fredof the user or initials ie jjones or fwilson Hints for login names canbe found trashing the location
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