![]() The internet is the largest example of a WAN, connecting billions of computers worldwide. For example, a LAN (local area network) connects computers in a defined physical space, like an office building, whereas a WAN (wide area network) can connect computers across continents. Geographic location often defines a computer network. You build a computer network using hardware (e.g., routers, switches, access points, and cables) and software (e.g., operating systems or business applications). ![]() What is a computer network?Ī computer network comprises two or more computers that are connected-either by cables (wired) or WiFi (wireless)-with the purpose of transmitting, exchanging, or sharing data and resources. In this introduction to networking, learn how computer networks work, the architecture used to design networks, and how to keep them secure.
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