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Why UNIX ?

• Introduction
• UNIX - What Is It?
  • UNIX is an operating system for computers
• Why UNIX ?
• UNIX is "multi-tasking"
• Thousands of Business Applications
• UNIX is "portable"
• UNIX is "scalable"
• UNIX systems are "Open"
• UNIX Offers a Robust Programming Environment
• Built-In TCP/IP Networking
• Industry-Standard X-Windows and Motif GUI
• History of the UNIX Operating System
  • How it started (MULTICS, C - 1970's)
• Important Concepts Necessary to Understanding UNIX
  • Hierarchical File System
  • Virtual Memory
  • UNIX Shells
  • Multi-user
  • Multi-processing
  • The "root" User
• Summary