Benefits of text-based software[edit]
Text-based applications typically run faster than software involving graphics does. Text-based applications run faster because the machine does not expend resources on processing the graphics, which generally requires more system resources than text does. For the same reason, text-based applications use memory more efficiently.
Command line interfaces often provide the user more control on the software than a graphical user interface, by taking all the details of a command as parameters and/or by redirecting the outputs between commands. Since the available parameters are not explicitly enumerated, the application can accept many more options than an equivalent GUI-based software: a high number of options in a GUI would make it too complex and impractical, but that doesn't happen in a CLI. Thus the text-based input can provide more flexibility at the cost of learnability and a burden on user's memory.
As a result, text-based software can offer more powerful features than graphic-based software, such as combining the command using a pipeline that allows output of the first command to be used as the input of the next command. Using this, a complex operation can be accomplished in a single command line using a sequence of commands connected together in a pipeline.
In certain circumstances, text-based application offers faster user interaction than the graphic-based software does. Assuming that the user is fluent with typing, the user can enter commands faster than when using the graphical interface, because the users do not have to move their hands from the keyboard to enter different commands.
Limitations of text-based software[edit]
Many users may not find an application with a text-based interface very user-friendly. This is especially true for beginning computer users. While the user may learn how to operate the software by simply playing around or navigating through given options, a text-based system usually requires users to have a more detailed understanding of the commands. Many text-based applications have a menu or help system that shows the user some (or all) of the available options of the software.
Text-based software also has limitations on its output as well. Text-based output may not be considered very attractive to many users, and may be difficult to understand (compared to an output involving graphics). Therefore, certain operations cannot be implemented using text-based software, due to its limitation of range in its input and output.In computing, a graphical user interface (GUI,[1] sometimes pronounced "gooey")[2] is a type of interface that allows users to interact with electronic devices through graphical icons and visual indicators such as secondary notation, as opposed to text-based interfaces, typed command labels or text navigation. GUIs were introduced in reaction to the perceived steep learning curve of command-line interfaces (CLIs),[3][4][4] which require commands to be typed on the keyboard.
The actions in a GUI are usually performed through direct manipulation of the graphical elements.[5] As well as computers, GUIs can be found in hand-held devices such as MP3 players, portable media players, gaming devices and smaller household, office and industry equipment. The term "GUI" tends not to be applied to other low-resolution types of interfaces with display resolutions, such as video games(where HUD[6] is preferred), or not restricted to flat screens, like volumetric displays[7] because the term is restricted to the scope of two-dimensional display screens able to describe generic information, in the tradition of the computer science research at the PARC (Palo Alto Research Center).Source: Wikipedia
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