Linux Allgemein

Linux is an affordable, good, stable, reliable and secure Operating System for Desktop and Server applications.
Linux is well suited for academic as well as for commercial usage.
Linux is something special, not experienced so far in the big OS space.
Linux is not thinkable without the Internet.
Linux is very important to keep the OS market competitive in the future.
Linux is the only competitor of Microsoft's operating systems, especially Windows NT.
Linux is a philosophy, but Linux is also a software

1969: Ken Thompson developed UNIX at Bell Labs.
~1985: Andrew Tanenbaum developed Minix.
1991: Linus Torvalds starts the work on a Minix derivative called "Linux".
1991: First stable kernel. Linux spreads in the Internet.
1998: Commercial hardware companies Siemens, HP, Compaq, Dell und IBM announce Linux on their plattforms.
1999: After SAPs announcement to port SAP R/3 to linux, the following producers of DB/ Applications software are in the linux boat: Oracle,Informix, Sybase, Ingres, SAP, Netscape....plus others.

Worldwide 7.5 to 10 Mio. User
27% of all web server running Linux (1. place)
37% of all FTP servers running linux (1. place)
27% off all News servers running linux (1. place)
Netspace, Linux Intern., Citroen, Subaru, Deja News, Whataburger, Netscape, Cisco, Sony, Debis, Mercedes Benz AG, Bosch DaimlerChrysler, Boeing, United States Postal Services all run Linux
Conclusion:
Linux has a very large private and commercial user base
Source: Linux International

GartnerGroup 01/99: "The ground swell of interest in Linux [..] is poised to gain momentum if sincere vendor support becomes available"
GartnerGroup 01/99: "Linux vendor technical support for MSEs will only be adequate for technically knowledgeable IT organizations through 2000 (0.7 probability)."
IDC 04/99: According to statistics from IDC, about 750,000 servers had Linux installed in 1998, an increase of 212% (NT: 36%)
IDC 04/99: Over the next five years, Linux will grow faster than all other operating systems combined.
Dow Jones 04/99 : The market size for Linux-related business will be between $5 billion and $20 billion in 2002.
DH Brown 04/99: Linux comes up short when compared feature-for-feature with commercial Unix products and Windows NT, but the operating system is great for some tasks.

Release early, release often - L. Torvalds
Delegate everything you can - L. Torvalds
Treating the users as co-developers means rapid code improvement and effective debugging.
Given a large enough beta-tester and co-developer base, almost every problem will be characterized fast and the fix obviously to someone.
Debugging is parallelizable - Jeff Dutky, Opensource Movement
KISS - Keep It Small and Simple

Listen to the users. Sometimes their ideas are better.
Recognizing good ideas from others is very important.
The internet is an ideal tool for development of software according to the Bazaar-Model.
In contrast Microsoft Software is developed according to the Cathedral-Model.
Linux is developed by the community.
Anyone making use of the software must agree to give everyone else the rights to use, modify, and redistribute the program´s code or any program derived from it but only if the distribution terms are unchanged.

(Ist mittlerweile in RedHat aufgegangen.)

Zero costs (if you have Internet access)
should be managed by the system administrator
You have to be active in Newsgroups, Mailing Lists, WWW etc.
there is no guaranteed servic time ... but a very high probability to get the problem fixed

Community Help: The Linux Documentation Project maintains dozens of how-to files covering every imaginable subject, including installation, DOS emulation, networking, and using Cyrillic characters.
Check Out Newsgroups: Check out the wide variety of Linux-based Usenet newsgroups, including comp.os.linux.misc, comp.os.linux.setup, comp.os.linux.questions, and alt.os.linux.
Other Linux Users: Linux user groups have cropped up around the globe
Shell Out Cash: If your company needs Linux support--even around the clock--it's available. Both Red Hat and Caldera offer full-time, phone-based tech support help, either on a per-incident or annual contract basis. In addition, there is now support from software and hardware vendors like Siemens, IBM, Compaq.....

Linux "common channels" support using specialized news groups and mailing lists has a great value.
Direct contact with the main developers
Direct contact with users with the same problem
Fast response and advice ( ~ 1 hour response time is common)
An alternative to "commercial support" but without guarantees
Hardware and Software support directly from vendors recommended
By mission critical application 24/7 support contracts recommended

Graphical user interface X-Windows
Desktops KDE and Gnome
Applications for most important tasks: Office applications, image processing, scientific/technical, web, audio, internet tools, software development, rendering,...
SAP R/3 GUI available since 12/99
Although many applications are available, Linux needs a better and easier installation procedures and more applications for the normal user.
The upcoming OpenLinux 2.2, Redhat 6.0 and SuSE 6.1 seem to be going into this direction
Linux on the Desktop only for advanced users.
L. Torvalds: "... The desktop market is the hardest by far".