Technical Concepts for New Unix System Administrators

Unix differs from Macintosh and Windows at a fundamental level. Unix has been originally intended for several users running multiple concurrently program. The phenomenon of a user having personal workstation at a lower cost and running Linux or any other variant of Unix is really a recent development in terms of the operating system's history. The reality in which Unix has been designed for use through more than a single user is reflected by the operating system's security features, file systems, and programming model.

Unlike Macintosh and Windows networking is not an afterthought or a present development for Unix. Support for sharing files, running applications on remote computers and moving from workstation to workstation that are controlled and viewed on a local workstation is not only intuitive and natural on Unix, but has been more powerful and stable even in the earlier versions of Unix when compared than the latest versions of Windows NT and Windows.