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To celebrate Internet Day, we have compiled a glossary of the most commonly used words in the Internet world. For all those who are regular users, this glossary brings together the definition of the terms and how they are applied today.


A concept derived from the scientific contributions of the Arab mathematician Al-Khwarizm (780 – 850 AD) and defined as a series of instructions that enable the execution of tasks and the resolution of problems on the network. Today, search engines apply algorithms to display the ranking of results.


Represents the average number of bits in each second of recording. Technically, the bitrate indicates the quality of the conversion, and the higher the number, the lower the loss of quality and, consequently, the better the sound.

IP address

This is a number divided into four parts, for example: And each electronic device connected to the Internet uses a different IP address (a number), which is used as a unique identifier.

Internet Domain

The domain is a term commonly applied to identify and refer to addresses published on the Internet.


Programs or utilities that can be downloaded from the Internet for free. Halfway to freeware is shareware, which can be defined as a downloadable program that offers limited time or basic features.


HTTP stands for HyperText Transfer Protocol and is a protocol or set of rules for using the network and publishing web pages on the Internet. HTTPS is used to indicate the use of extra protection when transferring information over the network.


It stands for HyperText Markup Language and represents the language used by browsers to interpret and display the pages we see on the Internet.


Refers to a free software operating system or kernel system, i.e. a system where it is possible to view and modify its source code (its internal composition). Linux and free software are often used as synonyms.


It is the information present in the source code (HTML) that describes a website and includes title, description, keywords that define it, among others.


A metaphor used by Internet users to refer to the information storage services or resources used on a computer that are accessed via the Internet as a remote site.


These are pop-up windows that include sponsored content and are promoted by different companies. They can be annoying if they appear in excess, but browsers such as Firefox or Google Chrome allow the possibility of limiting their appearance.


This stands for Peer-to-Peer and represents peer-to-peer communication, which means that, given a P2P network, computers can connect and communicate with each other without using a central server and with the corresponding optimization of the network capacity.


Also known as junk mail, this includes all unsolicited e-mail. Generally, spam seeks to promote a website or a product.


This is destructive malware that masquerades as a normal program. The difference between a virus and a Trojan lies in the fact that Trojans do not duplicate themselves, although they are still dangerous for the computer and the network.


Virtual Private Network that uses the Internet to provide remote connections to different computers within a company. VPN is especially useful for teleworking by an organization’s employees.