Brief History of Linux

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Enabling Grids for E-sciencE Brief History of Linux Vladimir SLavnic [email protected] Scientific Computing Laboratory Institute of Physics Belgrade, Serbia Nov. 18, 2008 www.eu-egee.org EGEE-III INFSO-RI-222667 EGEE and gLite are registered trademarks Unix like Systems History Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 Introduction to Cluster and Grid Computing in Mechanical Engineering 2 Software Licensing Enabling Grids for E-sciencE • 1973. Licensing of UNIX by AT&T • Copyright • 1983/1984. GNU's not UNIX – Richard Stallman • Copyleft EGEE-III INFSO-RI-222667 Feeling Free Enabling Grids for E-sciencE • Free software is the matter of liberty, not price. To understand the concept you should think of free as in free speech, not as in free beer. • Free Software Foundation – The freedom to run the program, for any purpose (freedom 0). – The freedom to study how the program works, and adapt it to your needs (freedom 1). Access to the source code is a precondition for this. – The freedom to redistribute copies so you can help your neighbor (freedom 2). – The freedom to improve the program, and release your improvements to the public, so that the whole community benefits (freedom 3). Access to the source code is a precondition for this. EGEE-III INFSO-RI-222667 Linux Enabling Grids for E-sciencE • Main distributions – Red Hat Enterprise, Fedora Core – SuSE Linux Enterprise, Open SuSE – Debian – Slackware – Mandriva – Ubuntu – Scientific Linux, CERN Linux EGEE-III INFSO-RI-222667 Linux Enabling Grids for E-sciencE • Shell • Desktop Environments – KDE – GNOME – Window Maker – Black Box EGEE-III INFSO-RI-222667 .

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