Computer networks connect computers and other devices together to exchange information, resources and services. They can be based on wireless or wired connections and are able to be configured in many different network topologies. Networks are crucial for business today, and help us communicate effectively, collaborate and collaborate efficiently. They also aid in data security and access.

Computer networking is a broad field that covers the creation, maintenance, and architecture of communication networks. It is an amalgamation https://boardroomco.net/how-to-normalize-data-in-excel/ of electrical engineering and telecommunications.

The most famous computer network is the Internet which allows billions of users to connect and use the same resources at the same time. The network uses a packet switching model that routes data traffic through an almost infinite number of possible connections and pathways. Each packet includes control information and data from the user. The control information contains the destination and source network address along with error detection codes and sequencing information. The data part of a packet is the payload.

In a typical business network, there is central server that stores data and manages user access to crucial resources such as photocopiers, printers, and files. The server is protected by firewalls and multifactor authentication systems to ensure that only authorized users of the network have access to it. Centralizing all data on servers helps administrators to conduct regular data backups and enforce strict security guidelines for the network. Additionally, it lets employees to access corporate apps and services no matter their location — for example, video-calling and document-sharing software.