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RIP - H. Edward Roberts - PC Pioneer

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  • RIP - H. Edward Roberts - PC Pioneer

    Paul Allen and Bill Gates used his creation to launch a new world -

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    Re: RIP - H. Edward Roberts - PC Pioneer

    Interesting, that photo shows him resting on an LSI dumb terminal hooked up to an Altair 8800. At about that time Popular Electronics came out with a project utilizing an 8-bit 1802 Processor. You could ultimately program it with Basic-A using an ASCII decoder and a teletype keyboard.

    The project was the Cosmac Elf and two of us built one as a summer electronics project in 1976. At first the display consisted of four LED's then we added on a Binary to Decimal decoder and produced an 8-segment numerical display. Using the cascade function of the decoder, we were able to display multiple digits. Adding a hexidecimal decoder we expanded it to 16 digits (0-9, A-F) and built our own keyboard consisting of 16 momentary pushbuttons. Then the Binary to ASCII decoder came out and we attached a teletype keyboard to produce the full-range of the alphabits for Basic-A machine language programming.

    Using an ASCII to Video display modulator the Cosmac Elf became a functional PC about the same time the Altair 8800 became available as a kit.

    IBM-DOS, MS-DOS, Apple-DOS and CompaqA all came out sometime in those mid 70's. Those were interesting times with the advent of personal computers.
    Life is what you make of please read the instructions carefully.