Course: COSC513 Operating Systems
Name: Deyong Xu
ID: 103816
PREFACE
This article is just an introduction of Unix operating system to people who don’t any knowledge about Unix operating system . Generally speaking , people don’t need to understand too much about the details about a software or a system , the most important thing is people should know how to use these software or systems as a user . So what I’m going to do is to offer a little help to people who know nothing about Unix system and try to use Unix system as a tool in their work .
Over the past few years , Unix operating system has gained unprecedented popularity . The reason why Unix operating system is so popular is it allows more than one person to use the computer at the same time which means it’s a multiuser operating system , and it allows a person to communicate directly with the computer via a terminal which means it’s interactive . So it allows a group of people working together on a project to share selected data and programs , while keeping other information private .
When users learn a new software , what they concern mostly is how to use utility tools which the software offers and how to deal with files they create and operate on . So the next I’m going to talk about is whole idea about Unix operating system and its file structure .
Major ideas about Unix operating system
First of all , Unix operating system is a multitasking , multiuser , and multichoice operating system . Multitasking means one user can run more than one program at the same time . Users don’t have to run their programs one by one , they can do together . Multiuser means that more than one user can operate on Unix operating system at the same time , and this is the reason why Unix operating system gained popularity in the past years . The last character of Unix operating system is