Linux can be obtained from many places and media types. The most typical form for Linux are CD, DVD and dowload.
A distsro is a bundle of the Linux kernel (the base OS) and a large group of applictions. Distro usually include a bootable disk from which you can install the OS. Once you install from the distro Linux boost just like you boot to Mac OS or Windows.
Once installed updates to the Linux systems are automated. The updates are used to resolve discovered security issues, bugs and to enhace features of the OS and the ditro's applications.
There are many distribution channels for Linux some of the most well known include RedHat, Suse & Ubuntu.
In the past 12 months the most popular web souces for Linux distros rate as:
1 Ubuntu
2 openSUSE
3 Fedora
4 PCLinuxOS
5 MEPIS
6 Mandriva
7 Debian
8 Damn Small
9 Slackware
10 Sabayon
11 KNOPPIX
12 Gentoo
*Rating inf: distrowatch.com
Paul Yurt