Transcript LINUX Presented by: Cyrene Custodio Nancy Landa

LINUX
Presented by:
Cyrene Custodio
Nancy Landa
Reema Madan
Hector Merjil
Yvette Preciado gdfdgdfdh
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11-1
Background on Linux
Version of UNIX
Linus Torvalds – Creator of Linux
Open Source Operating System
Free Software
Source Code Available
11-2
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
11-3
How is Linux Used?
 Personal Workstation
 File and Print Server
 Internet Service Provider
 Three-tier Client/Server
 Turnkey System
11-4
Using Linux on Personal Computers
• Linux kernel for free
• Kernel is central component
• Kernel can be customized to user’s
needs
11-5
Linux Distributions
• Corel Linux
• Debian GNU/Linux
• OpenLinux (Caldera)
• Red Hat
• Slackware
• SuSE
• TurboLinux
11-6
Installing Linux
SuSE Distribution
11-7
SuSE Linux Hardware Requirements
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•
•
•
•
•
CPU
Main memory
Optical Drive
Graphic card
Hard Drive
Sound Card
11-8
CPU
• IBM
• INTEL
• Pentium I – III
• No 286, 386, 486, and Celeron
• AMD
• K6/II/III
• Duran
• Athlon, Athlon XP/MP
11-9
Main Memory
• SDRAM or DDRRAM
– Doesn’t matter
• Capacity:
– Minimum requirement 64MB
– Recommended 128MB and up
11-10
Optical Drive
• CD-ROM / DVD-ROM
– Sony, Philips, and Acer
– SuSE website has compatibility listing
• CD-R
– Sony, Philips, and Acer
11-11
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
11-12
Hard Drives
• Supports EIDE and SCSI drives
– IBM, Maxtor, and Seagate
• Capacity
– Min: 400MB
– Full Install: 3GB
– Anything above 3GB
11-13
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)
11-14
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
11-15
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
11-16
Working with Linux
Graphical User Interface
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X Window System
SuSE KDE SuSE
11-17
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
11-18
Software Applications (continued)
 TV, Video, Radio, and Webcam
 K3b: The KDE Burning Application
 Digital Cameras
 Kooka: Scanning Application
 Graphics with the GIMP
 Shell system
11-19
Working with the “Shell”
 Executes user commands
 Command element
 Command name
 parameters
11-20
Linux Directory Structure
 Store drives
 Accessing data using folders
 Root directory:
 beginning of file system
11-21
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
11-22
Why Use Linux?
• Costs less
• Stable
• Reliable
• Extremely powerful
11-23
LINUX VS WINDOWS
11-24
• Financial Differences
• Technical Differences
• End-User Differences
11-25
Financial Differences
11-26
Linux vs. Windows
COST
LINUX WINDOWS
Online Downloads
Free
Not Available
Retail Price, CD
$50
$300
11-27
• Cost for Businesses
–Companies have to spend millions for
licenses for ever individual windows
computer
–For Linux companies don’t have to spend
anything
11-28
Technical Differences
11-29
Linux vs. Windows
Keeping up to date
By Upgrading
Linux upgrades faster than Windows
Compatibility
Linux is Backward Compatible unlike
Windows
11-30
Linux vs. Windows
Features Provided
Both support Dynamic Caching
Both have Multi-user Support
11-31
Linux vs. Windows
• Application Differences
No commercial word processor for
Linux, which matches the quality for
Windows
11-32
End-User Differences
11-33
• Proprietary vs. Open Source
Windows is a Proprietary Technology
Applications will only work on Windows
Linux – Open Source
11-34
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
11-35
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 NT’s
11-36
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
11-37
In The Commercial Arena
NT – graphical interfaces, wizards and easyto-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
11-38
In The Commercial Arena
NT – easy for non-programmer
Linux – programmer-based culture
11-39
Conclusion
“When is it best to use Linux and when
should some other operating system be
preferred?”
It all depends on the user
11-40