When two devices communicate over a network, something inside the operating system makes that communication possible. Applications do not directly talk to the internet. They talk to the operating system . And the operating system uses something called a socket . If you understand sockets, you understand how real network communication begins at the OS level. The Problem Sockets Solve Imagine a web browser trying to load a website. The browser needs to: Send a request Receive a response Identify which server to contact Ensure the data reaches the correct application But applications cannot directly control: Network cards IP routing Packet transmission Hardware-level communication That responsibility belongs to the operating system. Sockets are the interface that connects applications to the OS networking stack. What Exactly Is a Socket? A socket is a software endpoint for communication. It acts as: A communication doorway A link between application and network An abstraction over lo...
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