CentOS UNIX operating system software package
CentOS (abbreviated from Community Enterprise operative System) could be a RHEL-based UNIX operating system distribution that makes an attempt to produce a free, enterprise-class, community-supported computing platform that aims to be functionally compatible with its upstream supply, Red Hat Enterprise UNIX operating system (RHEL).
CentOs is freely on the market and might be downloaded at https://www.centos.org/download/
Ubuntu UNIX operating system software package
Ubuntu could be a Debian-based UNIX operating system software package. it's engineered on Debian's design and infrastructure to produce UNIX operating system server, desktop, phone, pill and television operative systems. The variant formally suggested for many users, and formally supported by Canonical, is Ubuntu Desktop (formally named as Ubuntu Desktop Edition, and easily known as Ubuntu), designed for desktop and laptop computer PCs exploitation Unity Desktop interface (earlier versions used GNOME).
The system development is semiconductor diode by UK-based Canonical Ltd.
It is unengaged to transfer at http://www.ubuntu.com/download.
Red Hat UNIX operating system software package
Red Hat UNIX operating system could be a RPM-based UNIX operating system software package, assembled by the corporate Red Hat. it absolutely was a wide used free UNIX operating system distribution till its discontinuance in 2004, once Red Hat discontinued the Red Hat UNIX operating system line in favor of Red Hat Enterprise UNIX operating system (RHEL) for enterprise environments. Red Hat UNIX operating system nine, the ultimate unleash, hit its official end-of-life on Apr thirty, 2004.
Fedora, developed by the community-supported Stetson Project and sponsored by Red Hat, could be a free-of-cost various meant for home use.
It is transfer without charge at https://getfedora.org.
Rocks Cluster Distribution
Rocks Cluster Distribution (originally known as NPACI Rocks) could be a UNIX operating system distribution meant for superior computing clusters. Rocks was at first supported the Red Hat UNIX operating system distribution, but trendy versions of Rocks were supported CentOS, with a changed boa installer that simplifies mass installation onto several computers. Rocks includes several tools (such as MPI) that aren't a part of CentOS however square measure integral elements that build a bunch of computers into a cluster. The advantage of exploitation Rocks to create and maintain your cluster is straightforward. several HPC clusters, from a couple of nodes to thousands of nodes, square measure engineered by Rocks.
Rocks is freely on the market at http://www.rocksclusters.org/.
Hadoop could be a framework that permits for the distributed process of huge information sets across clusters of computers exploitation easy programming models. it's designed to rescale from single servers to thousands of machines, every providing native computation and storage. The core of Apache Hadoop consists of a storage half, called Hadoop Distributed classification system (HDFS), and a process half known as MapReduce. Hadoop splits files into giant blocks and distributes them across nodes during a cluster. To method information, Hadoop transfers packaged code for nodes to method in parallel supported the information that has to be processed.
Hadoop is freely on the market at http://hadoop.apache.org/releases.html.