Most of you think that Microsoft windows and Mac OS are the only two famous operating systems. But now Ubuntu a linux based operating system is also getting popular. Since most may not know how to install custom themes in ubuntu , here is a quick guide for all those newbies.

While Linux remains popular among enthusiasts, its adoption among casual PC users lacks the power to really threaten Microsoft Windows. However a small handful of groups still create operating systems designed to make the transition over to Linux a little bit easier and less intimidating.

Most Operating systems are very good these days. Primary focus for the Desktop Computer should be ease of use, or so you’d hope. I take five Operating Systems and compare them using six tasks that most users will need to do at least once a week. Here is how they did.

We, the undersigned, urge all computer makers implementing UEFI's so-called "Secure Boot" to do it in a way that allows free software operating systems to be installed. To respect user freedom and truly protect user security, manufacturers must either allow computer owners to disable the boot restrictions, or provide a sure-fire way for them to install and run a free software operating system of their choice. We commit that we will neither purchase nor recommend computers that strip users of this critical freedom, and we will actively urge people in our communities to avoid such jailed systems.

One thing any hacker should know is how to hack into login account of any operating system. Major Operating Systems that are used these days are Windows, Linux and Mac. So today I will show you how to hack into these Operating Systems. Are you curious how easy it is for someone to gain access to your computer? If so, read on...

Linux runs a massive 91% of supercomputers in June 2010. Windows on the contrary runs a sad 1%.

The TOP500 project was started in 1993 to provide a reliable basis for tracking and detecting trends in high-performance computing. Twice a year, a list of the sites operating the 500 most powerful computer systems is assembled and released.

Anyone who runs more than one operating system has had to deal with GNU GRUB (the GRand Unified Bootloader). Grub is the tool that allows you to pick which operating system to book when you turn your computer on. But you can do a ton more than that by configuring it and derailing from the standard configuration. Unfortunately, until recently users were forced to open up cryptic config files in text editors and try and figure out what to do based on the comments (or, more diligently, by reading man pages). Now, users can use QGRUBEditor.

Anti-virus software has become a critical aspect of computing at all levels. Although to this point it seems the only operating system that is really targeted by viruses is Microsoft Windows, the time will come when UNIX-based operating systems will be equally as marked.

One of the biggest issues when moving away from Windows is software availability; what we do on a computer isn’t defined by the operating system, but the third party software we use on that operating system. Because most of the software written for Linux operating systems is open source, it may be difficult to find a replacement for the everyday software that you use on Windows or Mac OS X.