The differences between the Internet, an intranet and an extranet is the size of interconnected computer networks within each of them and the accessibility of the information shared within the networks. The Internet is a global system of interconnected computer networks that share and have access to massive amounts of data, while an intranet is a private network of computers that is confined within an enterprise. The extranet, on the other hand, is somewhat like an intranet that can be accessed externally or can be thought of as an extended intranet.Know More
The Internet connects millions of computer networks, from private, public, academic and business establishments, sharing information, resources and services. People all over the world use the Internet to access web pages, send emails, play online games, listen to audio files, watch videos and download data.
An intranet network of computers is used primarily by companies and other private organizations. It behaves just like the Internet but the information shared, the pages, communication and other intranet features are contained within the intranet's firewall, to prevent unauthorized access from external computer networks.
The extranet is basically an intranet that allows access to external computers or computer networks. The type of access given to external computers in an extranet may have varying levels. Extranets are often used by businesses to give access to its costumers, suppliers, partners and vendors.Learn more about Internet & Networking
The Internet is considered by some people to be a bad thing because it allows any person to post information regardless of whether it is true or hurtful to another person. One of the biggest downfalls of the Internet is the spread of false information. This is especially a problem for open source websites that allow multiple users to edit web pages.Full Answer >
The Internet is useful for facilitating communication, distributing information, and sharing knowledge. Some of the ways this can be achieved through the use of the Internet is by fostering conversation or debates with other kinds of people, providing geographical information, and general knowledge sharing.Full Answer >
The major practical difference between 3G and 4G cellular networks is that 4G networks support much faster data transfer speeds than 3G networks. This increase in speed is due to improvements in cellular hardware and protocols, as well as a switch to pure Internet Protocol telephony in 4G systems.Full Answer >
LAN and WAN networks differ mainly in the area of coverage for the networks. A LAN, or Local Area Network, provides networking coverage for a small area, usually confined to a room, floor or the interior of a building, while a WAN, or Wide Area Network, connects several LANs into a single network, allowing the different smaller networks to communicate with one another.Full Answer >