Free Software == ne one can use Examine the source code No restriction of redistributing Ne one can change n modify the source code according to their need Licensing = opposite to most, Its free
Reliable: BSOD (frequent) = kernal panic (infrequent) No frequent crashes because of secure kernel Scalable: embedded devices to mainframes, no further drivers req. Flexible: FLOSS licencing Secure: no known viruses, multiuser since start,difficult to hack Price: no license fees, more control over cost. Added bonus: will make proprietary software cheaper due to competition!
Flexibility unfortunately means less standardisation. MacOS X is now Unix. Other free and commercial Unices
Boot into Knoppix (fiddle with BIOS settings first) Configure network if required Desktop takes features from Windows, Unix, Mac Virtual desktops Window dressing (antialiased fonts, transparent windows) Konquerer (single click, preview) Filesystem layout /bin, /home etc.
Also mention Lindows distribution for debian used for home SCHOOL and business markets, Gentoo: Gentoo Linux is a Linux distribution named after the Gentoo Penguin It is designed to be modular, portable and optimized for the user's machine
Start an xterm, or switch to a virtual console (Ctrl+Shift+F2) to demonstrate command line Point out that unlike Windows/Mac, almost all configuration, installation and maintenance can be carried out from the command line, hence remote maintenance.
What is Linux? <ul><li>Linux is a free Unix-type operating system originally created by Linus Torvalds developed under the GNU General Public License and the source code of which is freely available to every one. </li></ul>
History <ul><li>GNU Project started in 1984 to create “free” UNIX clone. </li></ul><ul><li>LINUX kernel created by Finnish college student, Linus Torvalds in 1991. </li></ul>LINUS TORVALDS
Free, Libre, Open Source Software (FLOSS) <ul><li>What can you do? </li></ul><ul><ul><li>Freedom to use </li></ul></ul><ul><ul><li>Freedom to examine </li></ul></ul><ul><ul><li>Freedom to redistribute </li></ul></ul><ul><ul><li>Freedom to modify </li></ul></ul><ul><li>What can't you do? </li></ul><ul><ul><li>Deny these freedoms to anyone else </li></ul></ul>
Why use Linux? <ul><li>Reliability </li></ul><ul><li>Scalability </li></ul><ul><li>Flexibility </li></ul><ul><li>Security </li></ul><ul><li>Price </li></ul>
The Unix 'onion' Linux kernel + GNU applications = complete, free, UNIX-like OS
Linux Distributions ( Flavours ) <ul><li>RedHat/Fedora </li></ul><ul><ul><li>Market leader. Licensing changes mean this is a less obvious choice than before. </li></ul></ul><ul><li>SuSE </li></ul><ul><ul><li>Well-equiped. Recently acquired by Novell. </li></ul></ul><ul><li>Mandrake </li></ul><ul><ul><li>Friendly, slick. </li></ul></ul><ul><li>Debian </li></ul><ul><ul><li>Non-commercial, community-maintained. Tricky but powerful </li></ul></ul>
The command line
Linux VS Windows
Flavors WINDOWS Windows 95 Windows 98 Windows Me Windows XP Windows 2000 Windows 2003 LINUX Suse Fedora Redhat Debian Ubuntu Knoppix Slackware Lycoris Linspire (Lindows)