Information Technology and Systems

The Internet is a network of networks based on the TCP/IP architecture developed by ARPANET (Advanced Research Projects Agency Network), in the US. Internet enables electronic commerce (e-commerce). Electronic commerce includes any form of computerized commercial transactions. These transactions may mean buying and selling of products and services on networked computers over the Internet.

An intranet is a private computer network designed for internal use in an organization. Intranets are mostly used for communications and collaboration, web publishing, and managing business operations. The use of Internet technology for strategic advantage helps organizations improve efficiency and compete globally.

Extranets link various Internet channels to connect the intranet of a business with the intranets of its customers, suppliers, or other business partners. These extranets enable customers, suppliers, consultants, subcontractors, business prospects, and others to access select intranet websites and company databases.