Glossary » logical input device
logical input device
a hardware-independent way of expressing the functionality of an input device. Also useful as an abstract way of discussing the functionality of widgets on the screen. Though other logical devices are popular (such as a 3D input device), the 5 traditional logical devices are:
- pick device – select an object or information on a screen
- locator – select an x,y position on a screen
- valuator – enter a value along a continuous range
- button – make a choice
- keyboard – enter alphanumeric data
