This type of terminal is also common in multiuser or networked systems. A graphics terminal is a smart terminal with special hardware that allows it to display pictures. If you work in a windows interface, you need a special type of graphics terminal known as an X terminal . The various keys on the keyboard allow you to enter data and control the cursor location. Keyboards for different countries can have their keys engraved with their character set.
Some keyboards also have more keys.
There are several kinds of keyboard designs. This section explains how keyboards work in general, and discusses the various keys and their use. The Typical Keyboard illustration shows a possible keyboard layout. The operating system controls these multipurpose keys. The software, usually a keyboard driver, controls these keys, which are similar to those on a standard typewriter.