Computer networks allow devices to communicate and share resources. They form the backbone of modern communication systems, enabling data transfer across different types of networks.
A Local Area Network (LAN) is a network that connects devices within a limited area, such as a home, school, or office building. It enables high-speed data transfer within a localized area.
TCP (Transmission Control Protocol) is a connection-oriented protocol that ensures reliable data transfer. UDP (User Datagram Protocol) is connectionless and allows faster, but less reliable, data transfer.