LINUX

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LINUX

• Presented by
• Cyrene Custodio
• Nancy Landa
• Reema Madan
• Hector Merjil
• Yvette Preciado

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Background on Linux

• Version of UNIX
• Linus Torvalds Creator of Linux
• Open Source Operating System
• Free Software
• Source Code Available

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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

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How is Linux Used?

• Personal Workstation
• File and Print Server
• Internet Service Provider
• Three-tier Client/Server
• Turnkey System

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Using Linux on Personal Computers

• Linux kernel for free
• Kernel is central component
• Kernel can be customized to users needs

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Linux Distributions

• Corel Linux
• Debian GNU/Linux
• OpenLinux (Caldera)
• Red Hat
• Slackware
• SuSE
• TurboLinux

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Installing Linux

• SuSE Distribution

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SuSE Linux Hardware Requirements

• CPU
• Main memory
• Optical Drive
• Graphic card
• Hard Drive
• Sound Card

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CPU

• IBM
• INTEL
• Pentium I III
• No 286, 386, 486, and Celeron
• AMD
• K6/II/III
• Duran
• Athlon, Athlon XP/MP

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Main Memory

• SDRAM or DDRRAM
• Doesnt matter
• Capacity
• Minimum requirement 64MB
• Recommended 128MB and up

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Optical Drive

• CD-ROM / DVD-ROM
• Sony, Philips, and Acer
• SuSE website has compatibility listing
• CD-R
• Sony, Philips, and Acer

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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

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Hard Drives

• Supports EIDE and SCSI drives
• IBM, Maxtor, and Seagate
• Capacity
• Min 400MB
• Full Install 3GB
• Anything above 3GB

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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)

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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

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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

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Working with Linux

• Graphical User Interface
• X Window System
• SuSE KDE SuSE

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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

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Software Applications (continued)

• TV, Video, Radio, and Webcam
• K3b The KDE Burning Application
• Digital Cameras
• Kooka Scanning Application
• Graphics with the GIMP
• Shell system

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Working with the Shell

• Executes user commands
• Command element
• Command name
• parameters

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Linux Directory Structure

• Store drives
• Accessing data using folders
• Root directory
• beginning of file system

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Subdirectories
Examples of 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

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Why Use Linux?

• Costs less
• Stable
• Reliable
• Extremely powerful

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• LINUX VS WINDOWS

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• Financial Differences
• Technical Differences
• End-User Differences

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• Financial Differences

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Linux vs. Windows
COST COST COST
LINUX WINDOWS
Online Downloads Free Not Available
Retail Price, CD 50 300
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• Cost for Businesses
• Companies have to spend millions for licenses for
  ever individual windows computer
• For Linux companies dont have to spend anything

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• Technical Differences

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Linux vs. Windows

• Keeping up to date
• By Upgrading
• Linux upgrades faster than Windows
• Compatibility
• Linux is Backward Compatible unlike Windows

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Linux vs. Windows

• Features Provided
• Both support Dynamic Caching
• Both have Multi-user Support

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Linux vs. Windows

• Application Differences
• No commercial word processor for Linux, which
  matches the quality for Windows

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• End-User Differences

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• Proprietary vs. Open Source
• Windows is a Proprietary Technology
• Applications will only work on Windows
• Linux Open Source

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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

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Linux vs. Windows
In The Commercial Arena

• 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 NTs

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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

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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

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In The Commercial Arena

• NT easy for non-programmer
• Linux programmer-based culture

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Conclusion

• When is it best to use Linux and when should
  some other operating system be preferred?
• It all depends on the user