In 5–10 sentences, describe how computer networks work.

Computer networks are physical (equipment) and logical (program, protocol) structures that allow two or more computers to share their information with each other.

Imagine a computer by itself, without being connected to any other computer: This machine will only have access to your information (present on your HDD) or information that may come to it via floppy disks and CDs.

When a computer is connected to a computer network, it can have access to the information that comes to it and the information present on other computers connected to it on the same network, which allows much more information to be accessed through that computer. .

Importantly, there are several types of communication networks, the most common being the following:

1 - Wide Area Network (WAN) are wide area networks and have dimensions that correspond to various countries or even continents, the most common example being the internet.

2 - Local Area Network (LAN) - These are local area networks and are characterized by occupying a limited area, such as a specific building or room.

3 - Wireless Local Area Network (WLAN) - These are wireless local area networks, and are mainly used in situations where there is a need for constant mobility, and their main advantages include flexibility and simplicity of installation.

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