· Sharing of files with one or more parties
· Sharing of email with one or more parties
· Allow the user of one computer system to log onto another computer system
From these three functions, Internet applications like WWW, file transfer, telnet and others are created.
Networks and Commercial transactions- The idea of doing business electronically over network is not new. As the world becomes increasingly interconnected, particularly through Internet with its open protocols, forward looking businesses will be able to make their products available to global market without having to create and maintain their own private network for sales, delivery and customer support.
The number of businesses devoted to promoting commerce on the Internet has been growing exponentially, but they all share the goal of making commercial transactions over the Internet safe, simple and secure – and earning a profit in the process. The methods employed to achieve these ends are somewhat more various, but can be categorized as either creating secure and reliable channels to carry transactions across Internet connections or using more traditional channels to carry sensitive information.
Electronic merchants need to feel confident they can safely market and deliver their products, get paid for all products purchased and not lose any product to theft.
Electronic consumers need to feel confident they can safely select and take delivery of products, pay for them and not be concerned about compromise of payment information such as credit card or bank account numbers.
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