Thread

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A computational task. In multi-threaded systems, multiple threads run concurrently, and share the same software components and common data.

A thread is basically a path of execution through an application. In the case of Web browsers, this path consists of sending a request, receiving the response, and displaying the object. Each thread operates independently; it is the smallest unit of execution that an operating system schedules. If a Web browser requests more that one object at the same time, the browser creates and maintains a thread for each of them, establishing multiple connections to the server; this is called multi-threading. Limits are usually set to the number of threads a Web browser can run simultaneously.

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