This menu contains items that illustrate and explain some of the basics concepts that are represented by any operating system and by UNIX in particular. It helps you to understand why UNIX behaves in the way that it does. It explains:
- what an operating system is - the structure of the UNIX operating system - about commands and processes - the UNIX file system - different UNIX shells
Understanding these concepts you will help you make better use of UNIX and have a clearer idea about what it is you are doing.