Free OS

What is OS?

OS stands for operating system.

This is an interface between hardware and applications; it is responsible for the management and coordination of activities and the sharing of the limited resources of the computer. The operating system acts as a host for applications that are run on the machine. As a host, one of the purposes of an operating system is to handle the details of the operation of the hardware. This relieves application programs from having to manage these details and makes it easier to write applications. Almost all computers, including handheld computers, desktop computers, supercomputers, and even video game consoles, use an operating system of some type. Some of the oldest models may however use an embedded operating system, that may be contained on a compact disk or other data storage device.

Operating systems offer a number of services to application programs and users. Applications access these services through application programming interfaces (APIs) or system calls. By invoking these interfaces, the application can request a service from the operating system, pass parameters, and receive the results of the operation. Users may also interact with the operating system with some kind of software user interface (UI) like typing commands by using command line interface (CLI) or using a graphical user interface (GUI, commonly pronounced “gooey”). For hand-held and desktop computers, the user interface is generally considered part of the operating system. On large multi-user systems like Unix and Unix-like systems, the user interface is generally implemented as an application program that runs outside the operating system. (Whether the user interface should be included as part of the operating system is a point of contention.)

Thank you for your very nice explanation, but I still don't understand...

Well, thanks for your honest.

Ok,let me show you some easy to understand example, Microsoft Windows XP, Windows Vista as well as Windows 7 (you probably don't know it yet, because it's still in beta), they all are OS.
Clear now?

Now, we are going to show you all types of known OS which we know, and most of them are totally Free of Charge. Yes, FOC.

There are too many linux based os, and after long time research, we found 71 linux os, 3 of them are paid os and 68 are free. Yes, 68 of them are FREE of Charge!!!

Among all the 68 linux os, the most popular and widely used are:

- Fedora

- Ubuntu

- CentOS (Mainly used in internet server)

- Debian (Mainly used in internet server)

- FreeBSD

- OpenSUSE

Mac OS (Apple)
Mac OS http://www.apple.com/macosx
Solaris OS (Free, powered by Sun microsystems)
Solaris http://www.sun.com/software/solaris/10		Opensolaris http://www.opensolaris.com
Paid Version Linux
DiscoverStation (Userful) http://www2.userful.com	RedHat Enterprise http://www.redhat.com	Turbo Linux http://www.turbolinux.com
Free Version Linux
64 Studio http://www.64studio.com	Adios http://os.cqu.edu.au/adios	AliXe http://alixe.org	Archlinux http://www.archlinux.org
Ark Linux http://www.arklinux.org	ASLinux http://www.activasistemas.com/index.php?id=7	ASP Linux http://www.asplinux.ru	Aurox http://www.aurox.org/en/
Bayanihan http://www.bayanihan.gov.ph	Blag http://www.blagblagblag.org	Berry http://berry.sourceforge.jp	BOSS (Bharat Operating System Solutions) http://bosslinux.in/wiki/IndexPhp
CentOS http://www.centos.org	Crux http://crux.nu	Damn Small Linux http://www.damnsmalllinux.org	DARKSTAR Linux http://www.darkstarlinux.ro/en
Debian http://www.debian.org	Devil-Linux http://www.devil-linux.org	Edubuntu http://www.edubuntu.org	EnGarde http://www.engardelinux.org
Fedora http://fedoraproject.org	FreeBSD http://www.freebsd.org	Freespire http://www.freespire.org/	Gentoo http://www.gentoo.org/
gOS http://www.thinkgos.com	Impi Linux http://www.impi.org.za	Insigne http://www.insignesoftware.com	Knoppix http://www.knopper.net/knoppix/index-en.html
Kubuntu http://www.kubuntu.org	Lineox http://www.lineox.net	Linpus Linux http://www.linpus.com.tw	Linux Mint http://linuxmint.org
Mandriva http://www.mandriva.com	Mepis http://www.mepis.org	Momonga http://www.momonga-linux.org	Morphix http://www.morphix.org
Mythbuntu http://www.mythbuntu.com	NetBSD http://www.netbsd.org	OpenLX http://www.openlx.com	openSUSE http://www.opensuse.org/en/
Paldo http://www.paldo.org/	Pardus http://www.uludag.org.tr/eng/	PCLinuxOS http://www.pclinuxos.org	Pioneer http://www.tapioneer.com/
Puppy Linux http://www.puppylinux.org	Rock Linux http://www.rocklinux.org/wiki/Main_Page	rPath http://www.rpath.org	Sabayon http://www.sabayonlinux.org
SauverOS http://sauveros.com/site/	Scientific Linux https://www.scientificlinux.org	sidux http://sidux.com	Slackware http://www.slackware.com
Slax http://www.slax.org	StartCom http://linux.startcom.org	Stux http://www.gpstudio.com/stux/	Symphony One http://symphonyos.com/cms/
System Rescue CD http://www.sysresccd.org/Main_Page	Tuquito http://www.tuquito.org.ar	Ubuntu http://www.ubuntu.com	Ubuntu Studio http://ubuntustudio.org
Ulteo http://www.ulteo.com/home/en/home?autolang=en	Vector http://vectorlinux.org	White Box Linux http://whiteboxlinux.org	Wolvix http://wolvix.org
Xandros http://www.xandros.com	Xfld http://www.xfld.org	Xubuntu http://www.xubuntu.org	Yoper http://www.yoper.com