http://www.technewsdaily.com/10-revolutionary-computers-0295/12
The evolution of computers throughout the years slightly mirrors mankind's in the sense that we upgraded our abilities in accordance to what we really needed to operate.
In the beginning, computers were birthed with the idea of making life easier for people, but for pioneering inventors this meant making complex machines that could only do the most simple tasks when compared to today's machines. The first computers that were actually built, not just blueprinted, were used in war time. The ENIAC was able to crunch algorithms which would be used by artillery operators to help them better aim the mammoth death machines. After the war, computers were created to help the business sector. Especially businesses that dealt with numbers and records, like accounting and life insurance.
It was not until the Xerox PARC Alto entered the computing ring that the idea of a personal computer came into play. While the concept was a new one, the Alto showed that a computer could be made with a wider range of people in mind. you no longer had to be a programming genius to operate a computer, because there were now features that made it more accessible. For example, it had a Graphical User Interface that was manipulated on a monitor through the use of a mouse. These things would forever change the way people used and interacted with computers.
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