Hardware: The basic structure of a computer comprising of all visible parts.

 Software: The programmes loaded on a computer are termed as software.

CPU: CPU stands for the central processing unit which is installed on the motherboard and is actually the real computer.

 Hard disk: This is the storage device located inside the computer.

Internet: A huge network  of computers owned by none; which is accessible 24 hours through Internet gateways.

Modem: An external communication device which acts as a bridge between two computers using normal telephone lines.

E-commerce: The buzz word for the current day world. E-commerce, or electronic commerce, simply means  buying and selling online through the electronic medium.

E-mail: Electronic mail, or e-mail, is simply exchange of messages through the electronic medium, usually referred to as computers.

Browser: A browser is a computer programme that facilitates viewing on the Internet. Thus, for viewing a site, browsers are required.

Hotmail: Hotmail, owned by Microsoft, provides free e-mail service, to anybody who registers with this site.