Computer networks connect computers and other devices to share information, resources and services. They can be built on wired or wireless connections and can be configured in a variety of network topologies. Nowadays, networks are crucial for business. They allow us to communicate more effectively, collaborate with others and work more efficiently. They also aid with data security and access.
Computer networking is a vast area that encompasses the development, maintenance, and architecture of communication networks. It is a mix of electrical and computer science. engineering.
The Internet is the most renowned computer network that allows billions of people to connect and share the same resources simultaneously. The network employs a switching model to direct data traffic through an almost infinite number of connections and pathways. Each packet includes control information and user data. The control information contains the destination and source network addresses errors detection codes, as well as sequencing information. The data part of a packet includes the payload.
In a typical network central servers store data and manages access by users to essential resources like printers photocopiers, and other files. The server is protected by firewalls and a multifactor authentication to ensure that only authorized users can access the network. Centralizing information on servers makes it easier for administrators and security policy enforcers to perform regular backups. Additionally, it allows employees to access corporate applications and services no matter their location, for instance, video-calling and document-sharing software.
