App Guide for Adobe Flash Player 21

Adobe Flash Player is software used to stream and view video, audio and multimedia and Rich Internet Applications (RIA) on a computer or supported mobile device. Flash Player was originally created by Macromedia, but is now developed and distributed by Adobe Systems Inc.

Adobe Flash Player is a runtime that executes and displays content from a provided SWF file, although it has no in-built features to modify the SWF file at runtime. It can execute software written in the ActionScript programming language which enables the runtime manipulation of text, data, vector graphics, raster graphics, sound and video. The player can also access certain connected hardware devices, including web cameras and microphones, after permission for the same has been granted by the user.

Flash Player is used internally by the Adobe Integrated Runtime (AIR), to provide a cross-platform runtime environment for desktop applications and mobile applications. AIR supports installable applications on OS X, and some mobile operating systems such as iOS. Flash applications must specifically be built for the AIR runtime to use additional features provided, such as file system integration, native client extensions, native window/screen integration, taskbar/dock integration, and hardware integration with connected Accelerometer and GPS devices.