An output device in a computer is the result of Data that has already been processed, and the information is processed to do it’s certain task. Output devices often fall under the categories or Text, Graphics and/or video and game information. Inputting and outputting devices can often work together to perform these tasks with the help of the processor loading up the codes. Specific types of output devices could be Multifunctional Printers or things like Monitors as they are an output (they show graphics)
Other types of output would be things such as Music, and speech or generally any other sound. Video is used to show a series of images, but speeds it up, turning it into a video. The audio output devices are often used to aid people who can’t see or hear very well. Programs such as Speakonia can help this.
Output Devices (Monitors and Printers)

