In 2004 more than 315 million computers become obsolete and causing a crisis.

A redundant array of independent disks (RAID) is a common system for high volume data storage at the server level using many small capacity disk drives.

Linux is a Unix like operating system originally developed by Linus Torvalds, then a university student in Finland.

India's top 5 software exporting companies are Tata consultancy service, Infosys, Wipro, Satyam and HCL technologies.