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IT320 Operating System Concepts

IT320 Operating System Concepts. Unit 3: Welcome to Linux September 2012. Unit 3: Reading & Assignments. Textbook Reading Chapter 2 (section on Linux) 1 Discussion Question PowerPoint Presentation Due Tuesday, September 11. Unit 3: Discussion Questions.

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IT320 Operating System Concepts

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  1. Kaplan University IT320Operating System Concepts Unit 3: Welcome to Linux September 2012

  2. Unit 3: Reading & Assignments • Textbook Reading • Chapter 2 (section on Linux) • 1 Discussion Question • PowerPoint Presentation • Due Tuesday, September 11 Kaplan University

  3. Unit 3: Discussion Questions • Linux distributions include many applications you would normally pay for on a Windows operating system. • Select two applications that are included with Linux and compare them to applications you paid for to use on Windows. • Share with the class your experience using the applications, is the functionality comparable, is it easy to use, would you recommend the application to others? • Compare the Linux and Windows operating systems. What differences and similarities have you found in Linux and Windows? Be as detailed as possible. Kaplan University

  4. Unit 3: Linux PowerPoint • Create a presentation of at least 10 PowerPoint slides comparing three Linux distributions. • Your presentation should include, but not be limited to, the hardware requirements, features, applications and utilities included with your Linux distribution. • Select one Linux distribution you would recommend for home use. Be sure to defend your selection. • Also include a title slide and reference slide (not part of 10) • If you need any guidance using PowerPoint, you can refer to the Atomic Learning section in the course home unit. Kaplan University

  5. Unit 3: Grading Rubric • Grading Rubric • 10 points – Three different Linux distributions selected • 10 points – Requirements & features of Linux Distribution 1 • 10 points – Requirements & features of Linux Distribution 2 • 10 points – Requirements & features of Linux Distribution 3 • 10 points – Recommended Linux defended Kaplan University

  6. Overview of Linux Kaplan University

  7. What is Linux? • “Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world. Developed under the GNU General Public License , the source code for Linux is freely available to everyone.” • Source: http://www.linux.org/ Kaplan University

  8. Who created Linux? • Started in 1991 as a variant of UNIX • Created by Linus Torvalds at University of Helsinki, Finland • Version 1.0 of the Linux Kernel released in 1994 • Current version of Linux Kernel - Version 3.5.3 Kaplan University

  9. Linux - GPL • Torvalds released Linux under GPL • GNU general public license (GPL) • Very different from standard commercial software license • Author agrees to give away source code • Anyone is licensed to redistribute it in any form What is advantage of releasing under GPL? Kaplan University

  10. Advantages of Linux? • Based on your readings for this class, name 2 advantages for using Linux. Kaplan University

  11. Why Linux? • OS is free – you supply the hardware • Fully customizable • Powerful & exploit features of hardware • Linux Kernel is small & compact • Highly compatible with other OS • Well Supported • Open Source Kaplan University

  12. Linux Kernel • Kernel = Operating System • Interacts with hardware system • Provides execution environment to applications • To learn more about Linux Kernel, try the O’Reilly book “Understanding the Linux Kernel” • If you want to create your own, try the wiki site - http://kernelnewbies.org/ Kaplan University

  13. Linux Kernel • Kernel is process manager not process • 2 modes • User modeIn user mode, applications can not access the kernel. • Kernel mode • Kernel switches between modes Kaplan University

  14. Strengths & Weaknesses of Linux • What are some of the strengths to using Linux as your operating system? • What are weaknesses to using Linux? Kaplan University

  15. Strengths of Linux • Stability • Security • Speed • Cost • Multiprocessing • Applications Kaplan University

  16. Linux Distributions • Linux Kernel doesn’t provide all features of OS • Complete OS should include: • Hardware devices • Installation programs • Networking and system admin utilities • Personal productivity applications • Documentation • Linux Distributions • Version of Linux with OS Kernel and these components Kaplan University

  17. Linux Distributions

  18. Linux Distributions Source: http://distrowatch.com/dwres.php?resource=major Kaplan University

  19. Linux Distributions (“Flavors”) • Ubuntu • Fedora • openSUSE • Debian • Mandriva • FreeBSD • Linux Mint • PCLinuxOS • Slackware • Gentoo • CentOS • Plus hundreds more Which distribution(s) of Linux have you worked with? Kaplan University

  20. Hardware Requirements • Can run on very minimal hardware • Recommend that computer have minimum of: • 1 GB of free disk space • 64 MB of RAM • For Red Hat Enterprise Linux installations: • 256 MB of RAM • 300 MHZ CPU • 800 MB of free disk space

  21. Version Numbering • Version numbers assigned to: • Each release of Linux kernel • Each component of Linux distribution • Kernel version number components • Major version number • Minor version number • Patch-level number • Latest stable version for Linux Kernel • Version 3.5.3

  22. Careers in Linux Kaplan University

  23. Linux Certification • Industry certification programs • Red Hat Certified Technician • Red Hat Certified Engineer • LPI Certification • Linux Certified Administrator (LCA) Certification • CompTia Linux+ Certification • Novell Certified Linux Engineer

  24. Linux+ • Complete 2 exams (60 questions each) • LX0-101 ($173)Exam covers system architecture; Linux Installation and package management; GNU and Unix commands; devices, Linux file systems, and file system hierarchy standard • LX0-102 ($173)Exam covers shells, scripting & data management; user interfaces & desktops; administrative tasks; essential system services; networking fundamentals; security Kaplan University

  25. System Administrator • Linux is increasingly part of information technology infrastructure of large organizations • Knowledge of Linux can set you on path to a fulfilling and profitable career

  26. Careers in Linux • System administrator • Network administrator • Software engineer • Trainer • Technical writer • Product marketing • Business consultant The Complete Guide to Linux System Administration

  27. Unit 3 Assignment Kaplan University

  28. Unit 3: Linux PowerPoint • Create a presentation of at least 10 PowerPoint slides comparing three Linux distributions. • Your presentation should include, but not be limited to, the hardware requirements, features, applications and utilities included with your Linux distribution. • Select one Linux distribution you would recommend for home use. Be sure to defend your selection. • Also include a title slide and reference slide (not part of 10) • If you need any guidance using PowerPoint, you can refer to the Atomic Learning section in the course home unit. Kaplan University

  29. PowerPoint Assignment (slides) • Title • Overview / Preview of Presentation • What is Linux? • 2-3 slides for Distribution 1 • 2-3 slides for Distribution 2 • 2-3 slides for Distribution 3 • Recommended Distribution for home use & why • References Kaplan University

  30. Example – CentOS Linux • CentOS Linux • Started in 2003 • Based on Red Hat Enterprise Linux (RSEL) • Same as RSEL with centOS logo & branding • Stands for “Community ENTerprise OS” • Reliable server distribution • Updates released about every 2-3 years • Stable for enterprises, but not “latest & greatest” Kaplan University

  31. Example – CentOS Linux • Version & Architecture • Current version is CentOS 6.3 for I386 and x86_64 architecture • CentOS currently supports the following architecture • X86 – based on Intel 8086 CPU • X86_64 – 64 bit processor • Ia64 – Intel Itanium architecture (primarily for servers) Source: https://www.centos.org/modules/smartfaq/faq.php?faqid=16 Kaplan University

  32. Example – CentOS Linux • Features • Stable & Secure • Includes OpenOffice 2.0 • No DVD software interface • Utilities • Updated by YUM (Yellowdog Updated Modifier) • GNOME & KDE GUI Interfaces • RPM (RedHat Package Manager) Source: http://www.daniweb.com/news/post971130.html Kaplan University

  33. Any Questions? • Pam Van Hook • Email: pvanhook@kaplan.edu • Personal email: pvanhook@gmail.com Kaplan University

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