By anyone’s assessment, the Internet is an important infrastructure central to many innovations in business, government, media, education, healthcare, socialising, entertainment and the arts. There is hardly a part of our lives it doesn’t touch.
It’s worth noting here that whilst “Internet” and “World Wide Web” are often used interchangeably, they are not synonyms. The Web runs ‘on top’ of the Internet, as does email transmission for example.
The Internet relies on universal adoption of the Internet Protocol Suite, often referred to as TCP/IP after its two most important protocols: Transmission Control Protocol and Internet Protocol.
Remarkably, for protocols harking back to the 1960s, they have served us incredibly well. For example, their designers had no crystal ball foretelling the arrival of the Web with its Amazons, Googles, YouTubes, Facebooks and Twitters, nor voice-over-IP or video-over-IP or BitTorrent or Internet of Things.
Yet here we are!
The versions of Internet Protocol are explained further here…