Internet and WWW
The Internet is a global network that connects millions of devices worldwide, enabling communication, information sharing, and access to services like the World Wide Web (WWW), email, and Telnet. Key Internet terms include webpage (a single document), website (a collection of webpages), upload (sending data online), download (receiving data), web browser (software to view sites), URL (web address), search engine (tool to find information), domain name (human-readable website name), and IP address (unique identifier of devices). Alongside the Internet, organizations use Intranet, a private internal network for employees, and Extranet, which extends the intranet to allow secure access to trusted outsiders like suppliers or clients. The advantages of intranet include better communication, productivity, and security, while its disadvantages are high cost, maintenance needs, and possible misuse. Together, the Internet, Intranet, and Extranet are essential tools for global connectivity, internal efficiency, and business collaboration.
