Data Communication and Computer Network

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TCP/IP (Transmission Control Protocol/Internet Protocol) is a suite of communication protocols used to interconnect network devices on the internet. It ensures reliable data transmission by breaking information into packets, routing them to their destination, and reassembling them. TCP handles reliable delivery, error correction, and flow control, ensuring data arrives intact. IP focuses on addressing and routing packets to their destination across interconnected networks. This model is divided into layers: Application, Transport, Internet, and Network Access, each responsible for specific tasks. Widely adopted, TCP/IP is the foundation of modern networking, supporting email, web browsing, file transfer, and more.