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(1953) RAND Corp. completes the Johnniac Computer

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(1953) RAND Corp. completes the Johnniac Computer

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The Johnniac computer is one of the 17 computers that followed the basic design of Princeton's Institute of Advanced Study computer. The Johnniac was used for scientific and engineering calculations.

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(1956) Direct keyboard input to computers

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(1956) Direct keyboard input to computers

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At MIT researchers begin experimenting with direct keyboard input to computers. Before people using computers would feed their program into a computer using a punched card or paper.

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Model 501 Transistorized Computer (1958)

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Model 501 Transistorized Computer (1958)

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The 501 is built on a 'building block' concept which allows it to be highly flexible. For many business users, quick access to this huge storage capability outweighed its relatively slow processing speed.

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Atlas was the fastest computer in the world at the time and introduced the concept of “virtual memory.” System control was provided through the Atlas Supervisor, which some consider to be the first true operating system.

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The MacBook Air incorporated many of the technologies that had been associated with Apple's MacBook line of laptops. To reduce its size, the traditional hard drive was replaced with a solid-state disk, the first mass-market computer to do so.