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Computer Networks fundamentals

Computer Networks fundamentals

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In the hyper-connected world, it's easy to take for granted the invisible infrastructure that powers our daily lives. Every email we send, video we stream, online purchase we make, and smart device that responds to our command relies on the intricate and robust architecture of computer networks. A network is a system of interconnected devices—like computers, servers, smartphones, and Internet of Things (IoT) devices—designed to communicate and share resources, data, and services. Ranging from simple wired connections using cables to complex wireless systems using radio waves, networks scale from small local setups to the vast, globe-spanning system of the internet itself.

The importance of networks cannot be overstated. They are the circulatory system of the modern digital economy and society. Networks enable communication, facilitate data sharing, support business operations, drive technological advancements, and provide access to information and entertainment. For a geographically vast and developed nation like Canada, robust and reliable network infrastructure is critical for connecting communities, enabling a flexible workforce, delivering essential services, and fostering innovation. This guide explores the fundamental concepts of computer networks, including their core components, common types, essential communication protocols, and the architectures that govern them.

I. Core Components of a Network

II. Types of Networks by Scale

III. Network Architecture and Protocols

IV. The Indispensable Role of Networks in Modern Society

V. Challenges and the Future of Networking

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