Are often used to control video games, and usually have push-buttons whose state can be read by the computer.  Joysticks are also used for controlling machines such as cranes, trucks, underwater unmanned vehicles, and wheelchairs.

It captures and analyze unique physical characteristics—such as fingerprints, facial features, or iris patterns—to verify or identify an individual, providing secure access to devices, systems, or restricted areas. 

It captures high-quality images and videos, stores them digitally, allows immediate review and editing, and offers various settings like focus, exposure, and lighting adjustments to enhance the final output 

It produces precise, large-scale graphics, such as architectural blueprints or engineering drawings, by using pens or digital methods to draw continuous lines on paper or other materials, often supporting vector graphics for detailed and accurate output. 

It creates three-dimensional objects by layering material based on a digital model, enabling the production of complex shapes and prototypes for industries like manufacturing, healthcare, and design. 

It displays visual content, such as images or videos, onto a large screen or surface, making it ideal for presentations, movies, and large-scale visual displays.