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
Uses of the Internet include checking weather and news reports, sending/receiving email, performing financial transactions, shopping, searching for jobs, playing games, listening to music and even taking classes electronically. The Internet is used daily by all sectors of society, including individuals, corporations and research institutions. The reasons for using the Internet vary based on several factors including gender and race.Full Answer >
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 >
An intranet is important because it simplifies the internal communication within a business increasing productivity by allowing staffers to access an internal database easily. It also allows management and employees to communicate easily and share information across the organization. An intranet simplifies the follow-up process after meetings.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 >