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About Linux

About Linux

Published in: Business, Technology

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  • 1.  
  • 2.
    • is a Unix-like computer operating system
    • one of the most prominent examples of free software and open source development: typically all underlying source code can be freely modified, used, and redistributed by anyone
    • The name " Linux " comes from the Linux kernel, started in 1991 by Linus Torvalds
  • 3.
    • Predominantly known for its use in servers
    • supported by corporations such as Dell , Hewlett-Packard , IBM , Novell , Oracle Corporation , Red Hat , and Sun Microsystems
    • used as an operating system for a wide variety of computer hardware, including desktop computers, supercomputers, video game systems, such as the PlayStation 2 and PlayStation 3, several arcade games, and embedded devices such as mobile phones, routers, wristwatches, and stage lighting systems
  • 4.
    • Unix operating system was conceived and implemented in the 1960s and first released in 1970
    • Its wide availability and portability meant that it was widely adopted, copied and modified by academic institutions and businesses
    • The GNU Project, started in 1984, had the goal of creating a " complete Unix-compatible software system " made entirely of free software
  • 5.
    • MINIX , a Unix-like system intended for academic use, was released by Andrew S. Tanenbaum in 1987
    • In 1991, Linus Torvalds began to work on a non-commercial replacement for MINIX while he was attending the University of Helsinki
    • This eventually became the Linux kernel
    • Linux vendors and communities combine and distribute the kernel, GNU components, and non-GNU components, with additional package management software in the form of Linux distributions
  • 6. Developed the linux kernel in 1991
  • 7.
    • Today Linux is used in numerous domains, from embedded systems to supercomputers, and has secured a place in server installations with the popular LAMP application stack
    • LAMP
    • ( L inux, A pache, M ySQL, P erl/ P HP/ P ython)
  • 8.
    • Linux is a modular Unix-like operating system
    • uses a monolithic kernel, the Linux kernel, which handles process control, networking, and peripheral and file system access
  • 9.
    • Linux can be controlled by
      • text-based command line interface (CLI)
      • graphical user interface (GUI) (usually the default for desktop)
      • through controls on the device itself (common on embedded machines)
      • On desktop machines, KDE , GNOME and Xfce are the most popular user interfaces
  • 10.
    • The Linux market is growing rapidly, and the revenue of servers, desktops, and packaged software running Linux is expected to exceed $35.7 billion by 2008
    • IDC's report for Q1 2007 says that Linux now holds 12.7% of the overall server market
  • 11.
    • Proponents and analysts attribute the relative success of Linux to its:
      • security
      • reliability
      • low cost
      • and freedom from vendor lock-in
  • 12.
    • Frictional cost of switching operating systems
    • Lack of support for certain hardware and application programs designed for Microsoft Windows
      • recently Google has begun to fund Wine , which acts as a compatibility layer, allowing users to run some Windows programs directly under Linux
  • 13.
    • A 2001 study of Red Hat Linux 7.1 found that this distribution contained 30 million source lines of code.
    • Using the Constructive Cost Model , the study estimated that this distribution required about eight thousand man-years of development time.
    • If all this software had been developed by conventional proprietary means, it would have cost about 1.08 billion dollars (year 2000 U.S. dollars) to develop in the United States.
  • 14.  
  • 15.
    • community developed operating system that is perfect for laptops, desktops and servers most popular of the many Linux distributions
    • free of charge
    • Everything you need on one CD
    • Ubuntu's goals include providing an up-to-date yet stable operating system for the average user and having a strong focus on usability and ease of installation
  • 16.
    • sponsored by Canonical Ltd , owned by South African entrepreneur Mark Shuttleworth
  • 17.
    • The name of the distribution comes from the African concept of ubuntu which may be rendered roughly as " humanity toward others ", " we are people because of other people ", or " I am who I am because of who we all are “
    • is free software and can be shared by any number of users
  • 18.
    • releases new versions every six months, and supports those releases for 18 months with daily security fixes and patches to critical bugs
    • LTS (Long Term Support) releases are supported for 3 years for desktops and 5 years for servers
    • The most recent version, Ubuntu 8.04 ( Hardy Heron ) , was released on 24 April 2008
    • The next major version will be 8.10 ( Intrepid Ibex ) , scheduled for release in October 2008.
  • 19.
    • Productivity tools
    • Browsing
    • Photos
    • Music and video
    • Office applications
    • Accessibility
  • 20.
    • Email
    • Calendar
    • Contacts.
    • Tasks
    • Instant messaging
      • Pidgin IM is the extremely popular open source messaging tool
  • 21.
    • Rhythmbox Music and Totem video players
      • Stream live radio
      • Access (truly) free music stores
      • Plug in your devices
      • Share your music across a network
      • Video
  • 22.
    • Photos with F-Spot manager
      • Organise your photos (but in a fun way)
      • Export to your favourite online photo gallery
      • Edit Your Photos
  • 23.
    • Firefox 3 (Beta 5)
      • Enhanced bookmarking, tagging and history
      • Safer than ever
      • Wonderful world of add-ons
      • Improved address prompting in location bar
      • No more pop-ups, forced add-ons and other irritations
  • 24.
    • Office tools with and more!
    • Word processing
      • Writer is for anything from writing a quick letter to producing an entire book.
  • 25.
    • Spreadsheet
      • a tool to calculate, analyze, and present your data in numerical reports or charts.
  • 26.
    • Presentation
      • Impress is an easy, and powerful tool for creating effective multimedia presentations.
  • 27.
    • Orca Assistive Technologies For sight impaired users
    • Slow Keys and Gesture Support