Networks transmit data between devices from "summary" of Computer Networking Beginners Guide by Russell Scott
When we talk about computer networks, we are essentially referring to a system of interconnected devices that are able to communicate with each other. These devices can range from computers and laptops to smartphones, tablets, servers, and even smart home devices such as thermostats and security cameras. The primary function of a computer network is to transmit data between these devices, allowing them to share information, resources, and services. This process of data transmission is made possible through the use of various networking technologies, protocols, and devices such as routers, switches, and modems. These devices work together to establish and maintain connections between different devices on the network, enabling them to send and receive data packets. When a device wants to communicate with another device on the network, it sends out a data packet containing the necessary information such as the destination address, the data being sent, and any other relevant details. This data packet is then transmitted across the network, passing through various network devices until it reaches its destination. At each step of the way, network devices such as routers and switches play a crucial role in ensuring that the data packet is delivered to the correct destination in a timely and efficient manner. Routers, for example, help to determine the best path for the data packet to take through the network, while switches help to direct the data packet to the appropriate device.- The process of transmitting data between devices on a computer network is a complex and intricate one that relies on the seamless interaction of various networking technologies, protocols, and devices. By understanding how data is transmitted across a network, we can gain a better appreciation for the importance of computer networking in today's interconnected world.
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