The internet is a world-wide system of connected computer networks that makes it possible to access and share information among billions of users. The development of the internet began in the 1950's as simple point-to-point communication between mainframe computers and simple terminals. Decades later, the internet has come to encompass millions of computers around the world sharing information at a fantastically rapid pace.
The internet enables people to perform an endless array of activities. Anyone can can read books on line, watch movies, perform research, attend school, shop for groceries, socially connect with friends, and more all from the comfort of their home or office by connecting to a variety of internet sites.
The internet is accessed by a computer using a piece of software called a web browser such as Internet Explorer, Mozilla Firefox or Safari. The of Web browser used depends on the computer's operating system though many web browsers are available for both PC and Mac operating systems. It is important to understand and be able to identify the parts of a Web Browser window in order to use it properly.