A network refers to a system of interconnected entities, such as computers, devices, or people,
that communicate and share resources. In the context of technology, networks are often
associated with computer systems and telecommunications, enabling data exchange and
communication between devices. Networks can vary widely in scale, from local area networks
(LANs) connecting devices within a limited area like a home or office, to wide area networks
(WANs) that span large geographic areas, such as the internet.
Key components of a network include nodes (such as computers or routers), which are the
individual entities connected within the network, and links (such as cables or wireless
connections), which facilitate communication between nodes. Networks can be classified based
on their geographical scope, technology used (e.g., wired or wireless), or their purpose (e.g.,
public or private networks).
Networking protocols define rules and conventions for communication within a network,
ensuring that data is transmitted efficiently and reliably. Common networking protocols include
TCP/IP (Transmission Control Protocol/Internet Protocol), which governs communication on the
internet, and Ethernet, which is commonly used in LANs.
Networks play a crucial role in enabling various applications and services, including email, web
browsing, file sharing, and online gaming. They also form the backbone of modern businesses,
supporting activities such as remote collaboration, data storage, and access to cloud-based
resources.
With the proliferation of connected devices and the increasing reliance on digital
communication, the field of networking continues to evolve, with advancements in areas such as
wireless technologies (e.g., Wi-Fi 6), network security, and the internet of things (IoT), which
involves connecting everyday objects to the internet for enhanced functionality and monitoring.