Linux


Origin

  • Linus Torvalds
  • Finish college student in 1991
  • Created Linux kernel
  • When Linux kernel combined with GNU applications, complete free UNIX-like OS possible
  • Linus  Torvalds announced Linux in the comp.os.minix newsgroup in august 1991.

Why Linux

  • Fresh implementation of UNIX APPIs
  • Open source development model
  • Supports wide variety of hardware
  • Supports many networking protocols and configuration
  • Fully supported

Features

  • Linux is a UNIX-like OS: Linux is as similar to UNIX as the various versions are to each other. Conceptually, anything that can be done with another version of UNIX can be done with Linux operating system, although the means may vary slightly.
  • Multi-user and multi-tasking: Linux is a multi-user and multi-tasking operating system. That means more than one person can be logged on to the same Linux computer at the same time. And a user can have more than one process executing at the same time.
  • Wide hardware support: RedHat Linux supports most  pieces of modern x86-compatible hardware. In the early days of Linux hardware support was limited: today Linux support has become a check list for hardware vendors.
  • Fully supported: Red Hat is fully supported distribution.
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