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Unix is a multitasking, multi user computer operating system.
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Apple is an American multinational corporation. Founded by Steve Jobs and Steve Wozinak
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It is a supercomputer designed, manufactured, and marketed by Cray.
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Visicalc is the fist electronic spreadsheet. It was originally released for the Apple 2. It sold 700k copies in 6 years.
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Windows is a series of operating systems that is developed by microsoft.
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The Altair was a microcomputer designed in 1975. It was based on the intel 8080 cpu.
