A gui is an acronym for graphical user interface. This is the format which computer programs use to interface with users. Microsoft Windows is an example of a gui. Advantages of a gui include the fact that they are typically more user friendly by using a mouse and graphics to select commands and actions. Disadvantages of a gui include the fact that they are typically slower, and require more
. computer hardware to work than a non-gui such as MSDOS or Unix. Gui's are the most popular format for computer interfaces today, because of their graphical ease of use.