Software installation

[Aetheist]

Hello,

To install a program in Windows one
a) download a file,
b) install it by starting installer (setup.exe)
c) after installation is completed Windows places a shortcut on a desktop.
d) You can click on that shortcut and start a program.

How Linux is different?

Thank you in advance

[hard candy]

Welcome to linux and Justlinux. I'm not trying to be mean but I'm closing this thread and pointing you to a site which has a lot of the answers you are looking for. When you have a more specific question, feel free to post it. Such broad general questions such as "how do I install software in Linux" is best answered by reading the documentation, much as you did in Windows.
Linux Newbie Administrator Guide (http://linux-newbie.sunsite.dk/)

<added by mdwatts>

Each distro should have documentation on their site that explains their package management system and how to install their packages.

For source (tar.gz etc.), have a read of our Compiling Software JL Help File.