A GUI (usually pronounced GOO-ee) is a graphical (rather than purely textual) user interface to a computer.
As you read this, you are looking at the GUI or graphical user interface of your particular Web browser. The
term came into existence because the first interactive user interfaces to computers were not graphical; they were
text-and-keyboard oriented and usually consisted of commands you had to remember and computer responses
that were infamously brief. The command interface of the DOS operating system (which you can still get to
from your Windows operating system) is an example of the typical user-computer interface before GUIs
arrived. An intermediate step in user interfaces between the command line interface and the GUI was the nongraphical
menu-based interface, which let you interact by using a mouse rather than by having to type in
keyboard commands.
As you read this, you are looking at the GUI or graphical user interface of your particular Web browser. The
term came into existence because the first interactive user interfaces to computers were not graphical; they were
text-and-keyboard oriented and usually consisted of commands you had to remember and computer responses
that were infamously brief. The command interface of the DOS operating system (which you can still get to
from your Windows operating system) is an example of the typical user-computer interface before GUIs
arrived. An intermediate step in user interfaces between the command line interface and the GUI was the nongraphical
menu-based interface, which let you interact by using a mouse rather than by having to type in
keyboard commands.
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