Hi Radha,
Go for Linux. It's the first citizen for every C, C++, Python, Perl and Ruby Pipeline.
As for the Linux distribution, Try Gentto ( http://www.gentoo.org/ ) for best perfomance or BioLinux ( http://en.wikipedia.org/wiki/BioLinux ) for simple use. You might also look into CentOS, which is an Enterprise-class Linux Distribution derived from sources freely provided to the public by RedHat (as Rohan suggested to consider). In other words it is build on the source code from RedHat and it is free (see http://www.centos.org. It might be of advantage to use CentOS (if you don't want to spend money) since most of the commercial software is certified to run on RedHat and CentOS is 100% binary compatible to it. Moreover, If you planing to build a computing cluster then I suggest you to look into Rocks-cluster (http://www.rocksclusters.org) which is based on CentOS Linux. It is very easy to setup and to maintain.
For a novice linux user, I will recommend BioLinux, which is user-friendly and have pre-installed bioinformatics softwares. Bio-Linux 7 is a fully featured, powerful, configurable and easy to maintain bioinformatics workstation.Bio-Linux provides more than 500 bioinformatics programs on an Ubuntu Linux 12.04 LTS base. There is a graphical menu for bioinformatics programs, as well as easy access to the Bio-Linux bioinformatics documentation system and sample data useful for testing programs. http://nebc.nerc.ac.uk/tools/bio-linux/bio-linux-7-info
Thanks
Hello Radha,
In the Bioinformatics Linux and Unix is recommended. because
Thank you.