Adobe Flash
Adobe Flash was a multimedia software platform used to create animations, rich web applications, desktop applications, mobile apps, and games. It relied on vector and raster graphics, a scripting language called ActionScript, and streaming of audio and video. Flash content was delivered via the Flash Player browser plugin or the Adobe AIR runtime for standalone applications.
Developers should learn about Flash primarily for historical context, legacy system maintenance, or migrating old content to modern web standards like HTML5, CSS3, and JavaScript. It was widely used in the 2000s for interactive websites, online games, and e-learning modules, but its use declined due to security issues, performance drawbacks, and lack of mobile support, leading to its end-of-life in 2020.