This is a repackaged software wherein additional charges apply for Round-the-Clock support with a guaranteed 24-Hour response time. 

cloudimg presents this NodeJS 16 on Ubuntu Server 20.04 image preinstalled with system components such as Aliyun CLI & Python 3. A comprehensive user guide can be found in the User Guide section of this listing. 

NodeJS is primarily used for non-blocking, event-driven servers, due to its single-threaded nature. It is used for traditional web sites and back-end API services, but was designed with real-time, push-based architectures in mind.

NodeJS shines in real-time web applications employing push technology over websockets. After over 20 years of stateless-web based on the stateless request-response paradigm, we finally have web applications with real-time, two-way connections, where both the client and server can initiate communication, allowing them to exchange data freely. This is in stark contrast to the typical web response paradigm, where the client always initiates communication. Additionally, it is all based on the open web stack (HTML, CSS and JS) running over the standard port 80.

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