Graphical User Interfaces

Graphical User Interfaces

Windows'98, Windows 2000, Windows XP, Windowns Vista are some of the examples for the graphical user interface operating system.

All graphical user interface have some common features, they are

(i) They display number of windows on the screen. Each window can contain an application program or a document.

(ii) You can operate them by pointing and clicking. You can execute command by pointing to a command on the screen.

(iii) They have a WYSIWYG (What You See Is What You Get) display that shows a document on the screen much like it will look when it is pointed.

Pen based interfaces

On most new hand hled systems, the intefae is touch - sensitive. Use a stylus to write on it or to point to command and the text or command is read off the screen. The screen can sence the positions of the stylus and either to execute command or display hand writing on the screen. Windows CE operating system is the PEN-Based interfaces.

Touch screen interfaces

The touch screens enable the user to select an option by pressing a specific part of the screen by finger. These systems ar so simple to use that no instructions are needed. Touch screen interfaces are commonly used in fact food restaurents and information centers etc.

Conversational interfaces

These will eventually respond to spoke commands. In this area, the progress is slow. By this you can enter data and operat your applications using voice recognition software.