Babbage invented his first calculating machine that solved differential equations and dubbed it the "differential machine." ... These German communications were encoded by the German Enigma system. ... Operating systems allowed the user to run multiple programs at one time, while managing the computers memory (Computers: History n.p.). Many of the early operating systems were very unstable, and would sometimes cause the computer to stop working. An operating system does so many things at one time, it is hard to completely prevent a problem occurring at one point or another. ...

• Word Count: 1519
• Approx Pages: 6
• Grade Level: High School