Computer networks connect devices and computers to share resources, information and services. They can be wired or wireless and configured in various network topologies. Nowadays, networks are essential for business. They enable us to communicate more efficiently, collaborate with others and perform more efficiently. They also aid in data security and access.

Computer networking is a broad subject which covers the design, architecture, creation and maintenance of communication networks. It is a combination of electrical and computer science. engineering.

The most famous computer network is the Internet, which enables millions of people to connect and utilize the same resources simultaneously. The network utilizes a packet-switching model to guide data traffic through a near infinite number of possible pathways and connections. Each packet contains control information and information from the user. The control information contains the destination and source network addresses along with error detection codes as well as sequencing information. The payload is located in the data portion of a byte.

In a typical business network, there is central server that stores data and manages user access to vital resources such as photocopiers, printers, files and printers. The server is protected by firewalls and multifactor authentication systems to ensure that only authorized network users can access it. Centralizing all data on servers also helps administrators to carry out regular backups of their data and enforce strict security guidelines for the network. Employees can also access corporate services and applications, regardless of where they reside for example, video-calling software as well as document-sharing.

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