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Networks follow protocols, which define how communications are sent and received. These protocols allow devices to communicate. Each device on a network uses an Internet Protocol or IP address, a string of numbers that uniquely identifies a device and allows other devices to recognize it.
We introduce examples of protocols and services that are familiar to the students, and we explain how these services are supported by networks. Further, we explain fundamental concepts in digital communication, and focus on error control techniques that include parity check, polynomial code, and Internet checksum.
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The field of networking and communication includes the analysis, design, implementation, and use of local, wide-area, and mobile networks that link computers together. The Internet itself is a network that makes it feasible for nearly all computers in the world to communicate.
A network connects computers, mobile phones, peripherals, and even IoT devices. Watch overview (0:57) Discover networking solutions. The foundations of networking: switches, routers, and wireless access points. Switches, routers, and wireless access points are the essential networking basics.
Feb 23, 2023 · Network and Communication refer to the interconnected systems and devices that enable the transfer of data and information between various endpoints. The main components of a network and communication system include hardware devices such as computers, routers, switches, and modems, and software protocols that govern the flow of data between ...
Communications and Networking. An Introduction. Textbook. © 2013. Download book PDF. Download book EPUB. Overview. Authors: John Cowley. Introductory textbook in this area, sufficient for undergraduates but also accessible for business professionals. Second edition revised and updated with new content.
Computer networks may be classified by many criteria, including the transmission medium used to carry signals, bandwidth, communications protocols to organize network traffic, the network size, the topology, traffic control mechanisms, and organizational intent.
