Andmetevõrk

Andmetevõrk, often translated as data network, refers to a collection of interconnected computer systems and devices that can exchange data. This exchange can happen locally, within a building or campus, or over vast geographical distances. The fundamental purpose of an andmetevõrk is to facilitate communication and resource sharing among its participants.

At its core, an andmetevõrk relies on a set of rules and protocols that govern how data is transmitted, routed, and received. These protocols ensure that devices can understand each other and that data packets are delivered reliably to their intended destinations. Common examples of such protocols include TCP/IP, which forms the backbone of the internet.

The components of an andmetevõrk typically include end devices such as computers, smartphones, and servers, as well as networking hardware like routers, switches, and modems. These devices are linked together using various transmission media, which can be physical cables like Ethernet or wireless signals such as Wi-Fi.

Andmetevõrgud can be classified in several ways. Local Area Networks (LANs) cover a small area, while Wide Area Networks (WANs) span larger regions. The internet itself is the largest and most complex example of a WAN, connecting billions of devices globally. Beyond this, specialized networks exist for specific purposes, such as storage area networks (SANs) or virtual private networks (VPNs). The efficient and secure operation of these networks is crucial for modern communication, commerce, and information access.