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Linux Operating System Online Training by QuontraSolutions (1)


QuontraSolutions is a Global Interactive Online IT Training Portal started by Experts with an aspire to provide a Job Oriented IT Online Training on major modules. We provide Hands on online Linux Training with real time scenarios . QuontraSolutions online training could be described in one word by its students, Linux online training we provide with a real time support by our Industry IT experts. We are passionate about how to improve the IT skills by helping you to develop the skills you need in order to accomplish your objective. One free demo will be given before sign up for Online Training Email : Call us: 20-3734-1498 – PowerPoint PPT presentation

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Title: Linux Operating System Online Training by QuontraSolutions (1)

Linux Operating System
Presented By
QuontraSolutions Attend Free
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Operating system Linux
What is Linux?
Linux -is a freely distributed operating system
that behaves like the Unix operating system.
Linux was designed specifically for the PC
platform and takes advantage of its design to
give users comparable performance to high-end
UNIX workstations. Many big-name companies have
joined the Linux bandwagon such as IBM and
Compaq, offering systems pre-installed with
Linux. Also, many companies have started Linux
packages, such as Red Hat, Corel, and Samba.
However, they can only charge for services and
documentation packaged with the Linux software.
More and more businesses are using Linux as an
efficient and more economical way to run their
  • Linux is a complete multitasking, multi-user
    operating system that behaves like UNIX in terms
    of kernel behavior and peripheral support. Linux
    has all the features of UNIX and boasts of its
    open source code and mainly free utilities.
  • The Linux kernel was originally developed for the
    Intel 80386, which was developed with
    multitasking as one of its features. The kernel
    is the lowest-level core factor of the operating
    system. The kernel is the code that controls the
    interface between user programs and hardware
    devices, the scheduling of processes to achieve
    multitasking, and many other aspects of the

  • The Linux kernel is a monolithic kernel all the
    device drivers are part of the kernel proper.
    Despite the fact that most of Intel's CPUs are
    used with single-tasking MS-DOS, Linux makes good
    use of the advanced multitasking features built
    into the CPU's instruction set. Linux supports
    demand paging, which means that only the sections
    of a program that are necessary are read into
    RAM. Linux also offers support for copy-on-write,
    a process that if more than one copy of a
    particular application is loaded, all tasks can
    share the same memory. When large memory
    requirements are needed and only small amounts of
    physical RAM are available, Linux has another
    feature called swap space

  • Swap space allows pages of memory to be written
    to a reserved area of a disk and treated as an
    extension of physical memory. By moving pages
    between the swap space and RAM, Linux can, in
    effect, act as if it had much more physical RAM
    than it does, with the cost of some speed due to
    the hard drive's slower access. Linux also
    supports diverse file systems, as well as those
    compatible with DOS and OS/2. Linux's file
    system, ext2fs, is intended for best possible use
    of the disk.

The History of Linux
History Linux is a freely distributable
version of UNIX. UNIX is one of the most popular
operating systems for networking worldwide
because of its large support base and
distribution. Linus Torvalds, who was then a
student at the University of Helsinki in Finland,
developed Linux in 1991. It was released for free
on the Internet and generated the largest
software-development phenomena of all time.
Because of GNU software (GNU being an acronym for
Gnu's Not UNIX) created by the Free Software
Foundation, Linux has many utilities to offer.
The Free Software Foundation offers royalty-free
software to programmers and developers. From the
very beginning, Linux has been entwined with GNU
software. From 1991, Linux quickly developed on
hackers' web pages as the alternative to Windows
and the more expensive UNIX systems.
  • When Red Hat released its commercial version of
    Linux packaged with tech support and
    documentation, the floodgates broke and the
    majority of the public became aware of Linux and
    its capabilities. Now more and more new users are
    willing to try Linux on their personal PCs and
    business users are willing to use Linux to run
    their networks. Linux has become the latest
    phenomenon to hit the PC software market. Linux
    is a unique operating system in that it is an
    active participant in the Open Source Software
    movement. Linux is legally covered by the GNU
    General Public License, also known as GPL.

  • Open Source software is free but is not in the
    public domain. It is not shareware either. GPL
    allows people to take free software and
    distribute their own versions of the software.
    However, the vendors who sell free software
    cannot restrict the rights of users who purchase
    the software. In other words, users who buy GPL
    software can make copies of it and distribute it
    free of charge or for a fee. Also, distributors
    of GPL software must make it clear that the
    software is covered by the GPL and must provide
    the complete source code for the software at no
    cost. Linux embodies the Open Source model. Open
    source applies to software for which the source
    code is freely available for anyone to download,
    alter, and redistribute.

  • Linux is the perfect operating system for
    hackers because they can freely download newer
    versions of the Linux kernel or other Linux
    utilities of the Internet and instantly change
    its source code to fix any software bugs found.
    That way, bugs can be fixed in a matter of hours
    as opposed to days and weeks. Beta testers and
    code debuggers are unorganized and spread
    throughout the world, but surprisingly, they have
    managed to quickly debug Linux software
    efficiently and cooperate online through the use
    of the Internet.

Types of LINUX Operating Systems
  • RedHat Linux-
  • Lately, RedHat has been making the headlines with
    it's Linux distribution. It is one of the most
    popular distributions out there right now, and
    supports the Intel, Alpha, and SPARC platforms.
    Many users prefer RedHat Linux because of its
    ease of use, installation, and live tech support.
    RedHat Linux primarily comes bundled with the X
    Windows System, GNOME and KDE desktop
    environments, as well as the StarOffice suite.

  • Linux Mandrake-
  • Yet another rather popular distribution is Linux
    Mandrake. Similar to RedHat, it also bundles the
    X Windows System, GNOME, KDE, and StarOffice.
    What really distances Mandrake from RedHat Linux
    is its improved ease of use plus a few added
    extra tools and utilities.

  • Corel Linux-
  • Although less popular than something like RedHat,
    Corel Linux continues to shine with its usability
    and ease of installation through its Install
    Express. It comes with only the KDE environment,
    but also includes WordPerfect for Linux instead
    of Sun's StarOffice.

  • Debian/GNU-
  • Debian/GNU is intended for the more advanced
    Linux users out there. Although it is more
    difficult to use than other distributions,
    Debian/GNU is frequently chosen for web server
    purposes. Its stability and web adminstration
    tools are the reason many webmasters rely on
    Debian/GNU for their server environment.

  • Slackware- As one of the first distributions of
    Linux created, Slackware continues to be fairly
    popular. It also includes the usual X Window
    System, GNOME, and KDE. Slackware boasts
    excellent stability, at the expense of less
    updated code and more intermediate to advanced
    user appeal.

  • SuSE Linux- If you're looking full feature
    bundles with your Linux distribution, try SuSE
    Linux. Originally created by German programmers,
    this distribution has become quite popular in
    Europe and is gaining much recognition in the
    United States. Of course it includes the standard
    X Windows System, KDE and GNOME environments, but
    it distances itself from the other offerings by
    including a huge amount of bundled software. This
    distribution is also recommended for newer users.

  • Caldera Open Linux- Primarily designed for the
    business and power user, Caldera Linux focuses on
    internet applications. It includes a full
    collection of internet connectivity and access
    tools, and helps anyone take full of advantage of
    the internet through Linux.

  • Keep in mind that all of these distributions are
    very similar to each other, and their software
    bundles tend to be too. One major consideration
    that you should make when choosing a distribution
    is what you plan on using it for, and if you need
    particular software applications with it. Your
    best bet is to go and get an actual CD with the
    distribution, since it makes it much easier to
    install and run. You can always try to download
    it for free, but you'll probably end up finding
    it to be rather time consuming and difficult.
  • For example, the best distributions for the new
    user would be RedHat, Mandrake, Corel, and SuSE.
    A power or internet-oriented user would probably
    choose something like Caldera, Slackware, or

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  • Hard Drive Partioning
  • This is the biggest problem that many
    new Linux users may have when they begin
    installation. Linux requires its own, individual
    partition, which is difficult to make on various
    systems. The most common problem is trying to
    make two partions out of one Windows partition.
    Unfortunately, there is no easy way to do this
    but to clear everything off your hard drive and
    starting from scratch by budgeting a space for
    Windows and Linux.

  • The ideal and easiest way to get Linux on a new
    partition, and effectively, on your comptuer, is
    to have a hard drive with two partitions. One of
    these partitions is a Windows/DOS partition,
    while the other one must be unused and can be any
    format. You can just simply change the unused
    partition to become a Linux partition, and load
    Linux right onto it.
  • If you're stuck with one large partition on your
    only hard drive, you must reformat and make two
    partitions. Doing this will result in losing all
    your data... so make sure you backup everything
    before you begin. Even if you have extra space on
    your big Windows partition, you're still out of
    luck- you must re-partition your hard drive.

  • There are some third-party software programs that
    will let you resize or compress your current
    partition to free up space for another one. You
    are probably going to want to backup everything
    anyways, because you may end up with a hard drive
    with nothing on it if something goes wrong.
  • You should probably use fdisk in DOS to help you
    make your two (or more) partitions.

  • Drivers
  • Having the correct drivers is crucial
    to making sure your distribution of Linux runs
    correctly with your hardware. The new version of
    the X Windows System, XFree86 4.0 contains many
    new drivers that will let you run some of the
    newest hardware on the market. Of course, your
    manufacturer always has the best set of drivers
    for you hardware, so it's normally a good idea to
    check with them first.

Although software for Linux is developing daily,
the support base for software in Linux is still
quite small compared to Windows. However,
software for Linux tends to be open-source and
free much like the operating system. And although
some software may not be as fancy as Windows
software, Linux software does the job, and it
does it well. This guide will attempt to go over
some basic Unix commands that will help you
navigate around the Linux, and this guide will
also review some of the major software in Linux
available for you.
Software on Linux Running software on Linux
can be fun and can be a hassle. There are a ton
of programs out for Linux, but the trick is
choosing the one right for you. This is a brief
overview of some of the more common software.
  • LILO- If you have one or more other operating
    systems installed with Linux, LILO (Linux Loader)
    is a program that allows you to select which one
    to load at your computer's startup. Be warned,
    LILO messes with your Master Boot Record and if
    you mess with LILO, you could mess up your
    computer. (Trust me, it happened to me!) However,
    LILO is generally stable and easy to use.
    Distributions like Red Hat bundle LILO with their

  • Office Suites- Want something like Microsoft
    Office, except for Linux? There are two major
    office suites available for Linux at this time.
    One is Corel's WordPerfect Suite. The other is a
    lesser known but equally as powerful Sun
    Microsystems StarOffice. Both allow users access
    to most of the features Microsoft Office has to
    offer. However, WordPerfect for Linux and
    StarOffice are free to download off the Internet.
    Corel Linux bundles its WordPerfect with its

  • Text Editors- Emacs Editor is a very popular text
    editor in the Linux world. There are many
    benefits to Emacs and it has become a standard
    for many Linuxers. Emacs is usually loaded with
    the distribution installation.

  • Emulators- Miss your favorite DOS or Windows
    application? Not to worry. There are plenty of
    emulators for Linux that allow users to run DOS
    or Windows files directly on the Linux system.
    Two popular DOS emulators are Dosemu and xdos.
    For the Windows emulation, the current project is
    Wine. Wine is still being developed but its
    promises are breathtaking. The ability to run
    Windows applications on Linux is definitely
    worthwhile and programs will run just as faster,
    maybe even faster with the Linux environment.
    Wine is the solution for many Linux users who
    like Linux but still use several important
    Windows applications

  • X Window System- This is the program that allows
    graphical interface on the Linux system. X
    Windows makes it easy to configure your system.
    Most distributions come with X Windows and
    install it when they install the Linux kernel. X
    is easy to use and makes Linux a whole lot

  • Gaming- The gaming industry is just gaining speed
    on Linux. Companies like id are beginning to
    tailor to Linux gamers. Games like Quake 3 are
    beginning to have Linux versions in addition to
    Windows and Macintosh versions. However, many
    best-selling games like Starcraft have to be
    emulated on the Linux box using Wine.

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