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3. 11-3
Background on Linux
Version of UNIX
Linus Torvalds – Creator of Linux
Open Source Operating System
Free Software
Source Code Available
4. 11-4
Where is Linux Used?
75% of respondents were already using
Linux and another 14% were evaluating
it
43% of all web sites use Linux servers
running the Apache Web server
5. 11-5
How is Linux Used?
Personal Workstation
File and Print Server
Internet Service Provider
Three-tier Client/Server
Turnkey System
6. 11-6
Using Linux on Personal Computers
• Linux kernel for free
• Kernel is central component
• Kernel can be customized to user’s
needs
9. 11-9
SuSE Linux Hardware Requirements
• CPU
• Main memory
• Optical Drive
• Graphic card
• Hard Drive
• Sound Card
10. 11-10
CPU
• IBM
• INTEL
• Pentium I – III
• No 286, 386, 486, and Celeron
• AMD
• K6/II/III
• Duran
• Athlon, Athlon XP/MP
11. 11-11
Main Memory
• SDRAM or DDRRAM
– Doesn’t matter
• Capacity:
– Minimum requirement 64MB
– Recommended 128MB and up
12. 11-12
Optical Drive
• CD-ROM / DVD-ROM
– Sony, Philips, and Acer
– SuSE website has compatibility listing
• CD-R
– Sony, Philips, and Acer
13. 11-13
Graphics Cards
• Supports new cards on the market
– ATI: Radeon 7500/8500, FireGl 8700/8800,
FireGL 2/4
– Matrox: G450/G550
– nVidia: GeForce 2/3/4, nForce
14. 11-14
Hard Drives
• Supports EIDE and SCSI drives
– IBM, Maxtor, and Seagate
• Capacity
– Min: 400MB
– Full Install: 3GB
– Anything above 3GB
15. 11-15
Sound Card
• All common sound cards
– Dell & Yamaha OPL3-SA
• Professional audio:
– Soundblaster: Audigy
– Terratec: EWX 24/96 (Sereo I/O analog and
digital), EWS 88 MT (8 analog channels),
EWS 88D (10 digital channels in ADAT
format)
16. 11-16
Configuring Linux System
1. Selecting a language
2. Choosing automatic or manual
partitioning
3. Type of software to install
4. Choosing which drive to boot from
17. 11-17
Configuring Linux (continued)
5. Adjusting the time settings
6. Configuring the hardware aspect of the
system
7. Creating the root password (for the
Administrator), and user accounts
8. Hardware configuration
19. 11-19
Software Applications
OpenOffice: word processing, spreadsheets,
drawing
Adobe Acrobat Reader
Konqueror: The KDE File Manager and Web
Browser
Kmail: The KDE Mail Application
Evolution: An Email and Calendar Program
Sound Applications
20. 11-20
Software Applications (continued)
TV, Video, Radio, and Webcam
K3b: The KDE Burning Application
Digital Cameras
Kooka: Scanning Application
Graphics with the GIMP
Shell system
21. 11-21
Working with the “Shell”
Executes user commands
Command element
Command name
parameters
23. 11-23
Subdirectories
/root directory, starting point of the directory tree
/home (private) directories of users
/devDevice files that represent hardware components
/etc Important files for system configuration
/etc/init.d Boot scripts/usr/binGenerally accessible programs
Examples of Subdirectories
29. 11-29
• Cost for Businesses
–Companies have to spend millions for
licenses for ever individual windows
computer
–For Linux companies don’t have to spend
anything
31. 11-31
Linux vs. Windows
Keeping up to date
By Upgrading
Linux upgrades faster than Windows
Compatibility
Linux is Backward Compatible unlike
Windows
35. 11-35
• Proprietary vs. Open Source
Windows is a Proprietary Technology
Applications will only work on Windows
Linux – Open Source
36. 11-36
Linux
Complete information needed for
download
Technical help – Available on Internet
(user must be comfortable with UNIX
system)
Windows word processor is better than
Linux
37. 11-37
Linux vs. Windows
Head to head competition
Used side by side as servers
Both handled daily workload for several
small business operations
Linux with hardware disadvantage
supported a community of users 3 times
size of NT’s
In The Commercial Arena
38. 11-38
In The Commercial Arena
System Administration – Most significant
difference
Linux – tougher environment
Linux requires learning multi-user issues
built into Unix-file permissions
NT – easier environment
NT requires less effort to get a starter server
up and running
But in NT you have to solve multi-user issues
for each and every subsystem
39. 11-39
In The Commercial Arena
NT – graphical interfaces, wizards and easy-
to-grasp metaphors
But as server chores become more
customized, NT cannot handle it
Linux – textual interface (with X-Window)
But for complex jobs, Linux gives a powerful
set of tools
40. 11-40
In The Commercial Arena
NT – easy for non-programmer
Linux – programmer-based culture
41. 11-41
Conclusion
“When is it best to use Linux and when
should some other operating system be
preferred?”
It all depends on the user