Computer network It is a set of computers and servers: Servers), as well as various network devices such as the Router and Protection System (English: Firewalls), all attached to each other to allow for the transmission of data between them. The Internet is one of the best-known examples of computer networks; It has millions of computers from different…
: The network can be divided by size into several types, of which the most famous are
LAN (English: Local Aria Network), in which network devices are connected at close distances, examples of this type of network are home networks, networks used in schools, etc..
Network topology means the relationship between connected devices and how they are photographed in a graph. The number of connected devices can be determined in addition to their order and sequence. There are several forms of network that can be taken:
- Star topology: Star topology: Switch). A glitch in any of the computers in this network will only damage the connection of the device itself to the network and not to the entire network.
- Tree topology: Trey topology: The most popular is used in homes, as well as in companies, and is a mixture of star and bus topologies, in which several networks using stellar topology are connected to a single wire, and as such networks are more expandable later.
- Ring topology: In this type of network, each device in the network is connected to two other devices for the purpose of communication. When the data is sent as a loop, either clockwise or reverse, from device to device until it reaches the required location.
- Retinal topology: Examples of this type of network are the Internet and spaced networks (English: WAN), which is different in structure from other topologies; Where all devices are connected to each other to form a network, when sending data to a particular point, this data can take several ways to reach this point.
Bus topology: In this type of network, all devices are connected to a single wire.