Tablet, computer graphics

Access to graphic or spatial information that cannot be converted into text is virtually impossible for blind computer users. Several prototype devices have been built to display computer graphics to the fingers via vibrating or stationary pins. A fingertip-scanned display tablet with embedded electrodes, under development in our laboratory [Kaczmarek et al., 1997], eliminates all moving parts ongoing tests will determine if the spatial performance and reliability are adequate. 

Any program developed in-house must be easy to use, or user-friendly. If the program has various options for input, analysis, computation, and output, then it must provide the user with a fast way to select them. To meet this need, the system is likely to be menu-driven. The peripheral interactive devices such as mice, joysticks, light pens, graphic tablets, and templates are helpful and often used to expedite the selection process. 

In the next section, you learned about the various kinds of input and output devices that are commonly used with computers. You learned what input devices are commonly used with computers, like mice and keyboards as well as graphics tablets. You also learned about some types of hardware used to get data out of a computer, including monitors, printers, and modems. You learned what function each component has and how each component differs from the others. 

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