1.2.2 Web and Internet

VoIP

Sends voice phone calls using the TCP/IP protocol over digital data lines. With VoIP, phone calls are made through a network connection rather than through a standard phone line.

The Web

Short for World Wide Web, the Web refers to the digital content that is delivered over the Internet, usually through a web browser.

Intranet

A miniature Internet. It's a private network, not a public one, but it uses many of the same technologies that are used on the Internet, such as websites and email.

WiFi

A technology that provides wireless Internet connectivity through wireless routers. It uses radio waves to transmit data within a particular area referred to as a hotspot.

IP Address

Every computing device that accesses the Internet is assigned a unique Internet Protocol (IP) address. These addresses consist of either four (IPv4) or eight (IPv6) parts. An example of a four-part IP address is 137.75.68.206.

DNS

Is a protocol that associates domain names (such as web servers) with unique IP addresses. DNS servers translate URLs into machine-readable IP addresses.

URL

Is the reference or address to a resource on the Internet.

HTTP and FTP

Is used to identify resources and transfer content on the web. Some web pages use the HTTPS protocol, which adds an additional layer of encryption to make data transfers more secure. The File Transfer Protocol (FTP) can also be used to transfer data between computers on a network.

TCP/IP

It is the suite of protocols or rules that facilitate Internet communication.

ISP

Manage an access point to the Internet. They don't manage the entire Internet. If you think of the Internet as a big freeway, then ISPs manage the on-ramp to the freeway. They're responsible for building the on-ramp and keeping it maintained and open, but they're not responsible for the Internet itself.

Internet of Things (IoT)

The network of physical devices that are connected to the Internet and capable of communicating and sharing data through sensors, network connectivity, barcodes, QR codes, and other technologies.

HTML

The programming language that web pages use to display content through web browsers, such as Firefox or Google Chrome.

The Internet

While often used synonymously with the Web, the term Internet typically refers to the vast collection of networking hardware and physical computing devices that make up the Internet.