yes the internet.
Let's equate the Web with the Internet (which isn't quite true actually, but will do for our purpose).
The technology that makes it possible ranges from software, to mark-up languages, to ISP technology, to search engines, to server farms, to the cloud, and on and on and on.
Web technologies are infrastructural building blocks of any effective computer network: Local Area Network (LAN), Metroplitan Area Network (MAN) or a Wide Area Network (WAN), such as the Internet. Communication on a computer could never be as effective as they are without the plethora of web technologies in existence.