Final answer:
The answer to the question is 'touchscreen.' It is a display that also serves as an input device through touch or a stylus, used in various modern technologies like smartphones and graphics tablets.
Step-by-step explanation:
The student is asking about a touchscreen, which is a type of display that allows the user to interact with the computer or device by touching the screen with a finger or a stylus.
This technology can be found in various devices including tablet computers, smartphones, and certain types of graphics tablets. The touchscreen works by sensing the touch and interpreting it as an input command, making it both an output and input device.
For example, graphics tablets use a passive method, where a pen with a tiny magnetic field interacts with underlying wires in the screen to create a changing magnetic field, leading to an induced electromagnetic force (emf) that translates the pen's motion into digital imagery or commands.
Early forms of touch and interaction technology, such as Bulletin Board Systems, relied on basic graphics and text, but modern touchscreens offer complex imagery and interactive capabilities. This enables detailed mappings and representations on computer monitors, vastly enhancing user interaction with electronic devices.