Introduction to Linux in HPC/Historical Background

Video

Linux Introduction Slides 17 - 23 (7 pages)

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   page 1: 
       Linux is an open source Unix-like OS (behaves similar to Unix).
           brief characteristics of Unix
       Linux is compatible to the POSIX standard.
           brief characteristics of POSIX
   page 2: 
       There are many Unix variants from different companies: Apple, Sun, IBM, HP and even Microsoft.
   page 3:
       Linux is developed along this line.
   page 4: 
       Historically there are two separate initiatives: GNU and Linux
       To be more precise: GNU/Linux
           Linux: OS kernel
           GNU: many user programs
       Therefore many distros
   page 5: 
       Distros can be divided into different categories.
           for server: RHEL, Fedora, CentOS
           for user: Debian, Ubuntu, Mint
           for workplace: Suse
           specialized distros: Kali Linux for security testing
   page 6: 
       HPC: all Top 500 supercomputers use Linux
       Popular desktop Linux distros: Ubuntu, Linux Mint ...
   page 7: 
       Which Linux distro should I use?
           It depends on your needs.
           Available software packages, support and maintenance are also important.

Quiz

1. Are all Top 500 supercomputers using Linux in HPC?

	Yes
	No

2. What does GNU stands for?

	A. GNU's Not Unix
	B. Geek Needed Unix
	C. General Unix
	D. General Unix
	E. None of the Above

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