The world wide web is constantly evolving and developing through the use of new ideas. Some of these ideas range from the simple like the emoticon to the complex such as responsive web design. But while all of these design ideas helped shaped the web, transforming what used to be something only programmers and engineers could understand into an experience accessible to anyone today, I believe that the most important idea ever invented was the Graphical User Interface. Not only did it build the very foundation the web stands on, but without it other ideas that have changed the web would cease to exist. I am terrible when it comes to learning new languages. Unfortunately, everything that has to do with a computer involves the language of code. And just like there are many foreign languages in the world, there are many coding languages as well. HTML, CSS, Javascript, Java, C#, Python; the list is endless. The graphical user interface, otherwise known as the GUI, and sometimes pronounced “gooey”, fixes this problem. The GUI is a computer program that allows a person to communicate or put commands into a computer through the use of symbols, graphics, and a pointing cursor, making computers much more simpler to navigate. In other words, what the GUI does is translate large pages of code into something easier to understand; pictures. All I have to do is look at the pictures and use my cursor to give the computer a command. There is no one person who invented the GUI, in fact it was more like an idea that grew over time with the help of many people, each new innovator improving and adding on to what the previous person did. Although Douglas Englebart was not the first person to come up with the GUI, he was the first to bring it to the public's attention. In 1973, he created the Xerox Alto for his company Xerox Parc. It was the first system to pull together the elements of a GUI computer that people use today. According to, its features included a 3-button mouse, bit-mapped display, the use of graphical windows and a Ethernet network. When Steve Jobs saw the computer while visiting Xerox Parc, he saw its potential thus creating his own copy in 1983 named the Lisa, a home computer with GUI capabilities and a mouse. Pretty soon other computer companies followed, including Microsoft. Ultimately, the GUI is revolutionary. There is no way the web would have grown or even lasted this long if this idea did not come first. And without it, so wouldn’t the many other ideas the web uses today. Today GIU’s are used nearly everywhere from computers and mobile devices to iPods, gaming devices and other electronic equipment. Programs, websites, all great businesses who make money off of using the computer thrive and rely on this one idea because if GUI's didn't exist, many people wouldn’t understand how to use computers. Without a doubt, the Graphical User Interface truly changed how people used and viewed the web, ultimately changing the computer industry.