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Showing posts with label GNU. Show all posts
Showing posts with label GNU. Show all posts

Monday, August 13, 2012

Ubuntu Installation


There are many people interested to use ubuntu but don’t know how to get ubuntu. You’re reading this post means you know a little about ubuntu. You can check out the post ubuntu to know much. Ubuntu can be installed in three way on your PC.
  1. Install as primary os OR along with Windows or Mac (Dual Boot)
  2. Install in a virtual machine
  3. Ubuntu windows installer (like windows app)

Let’s start from first……
In this installation method we need to download a disc image in .ISO format, then burn on a DVD/CD and boot from CD.

  1. To download  .ISO file go to the following link


  1. Here you have two option to download. One is latest version, which is currently released. And the other is LTS version, which is supported for three years from being released.
  2. select your desired version then click the orange colored download button
  3. The file start downloading. It may take few hour as the file size is about 700M
  4. finishing download burn it to DVD/CD. You can use isoimageburn for to do so
  5. Now boot from CD. Then restart your PC the following dialogue box appears. Select try ubuntu if you want to install ubuntu without any change of your current os. OR select install to install. Make sure your disk has partitioned properly if you want to use ubuntu along with Windows or Mac. Nor current os will erase.
  1. Then select your language or which info want.
  2. Restart PC again & get ubuntu installed                   
             

Saturday, May 12, 2012

why the Linux os is free


What is the root cause of the Linux operating system to be free? The cause is in license. All free operating systems use GNU General Public License (GNU GPL) and FLOSS software. What am I saying?  What’s GNU & FLOSS. Let’s see…….

The name “GNU” is a recursive acronym for “GNU's Not Unix!”. "GNU" is pronounced "g'noo"
Logo of GNU
The GNU Project, started in 1983 by Richard Stallman, had the goal of creating a "complete Unix-compatible software system" composed entirely of free software. Work began in 1984. Later, in 1985, Stallman started the Free Software Foundation and wrote the GNU General Public License (GNU GPL) in 1989. By the early 1990s, many of the programs required in an operating system (such as libraries,compilers, text editors, a Unix shell, and a windowing system) were completed, although low-level elements such as device drivers, daemons, and the kernel were stalled and incomplete.

FLOSS
The Free/Libre/Open Source Software community, which is also known as FLOSS. FLOSS software comes completely free of charge and everyone is entitled to look at the source code and modify it as he pleases.GNU General Public  license used in the FLOSS community, that’s why it is free. You heard that the source code of Floss softwares are free.
This means that skilled developers from around the world contribute their work either for free, or via sponsorships from companies like Canonical or IBM. But you can improve the software as well.Microsofts Windows source code is not available to anyone but Microsoft employees, and it constitutes a felony to decompile or reverse engineer it. You cant build your own Windows kernel, fix bugs, or distribute an improved version of Windows that you created.

Richard Stllman 
Free software is a matter of the users' freedom to run, copy, distribute, study, change and improve the software. More precisely, it refers to four kinds of freedom, for the users of the software:
1.             The freedom to run the program, for any purpose
2.          The freedom to study how the program works, and adapt it to your needs
3.          Access to the source code is a precondition for this.
4.         The freedom to redistribute copies so you can help your neighbor
5.         The freedom to improve the program, and release your improvements to the public, so that the whole community benefits
 6.        Access to the source code is a precondition for this.                                 

“The word "free" in our name does not refer to price; it refers to freedom. First, the freedom to copy a program and redistribute it to your neighbors, so that they can use it as well as you. Second, the freedom to change a program, so that you can control it instead of it controlling you; for this, the source code must be made available to you.” –Free Software Definition by Richard Stallman