The Altair 8800
A mail-order metal box with switches and blinking lights that convinced thousands they could own a computer.
The object
The Altair 8800, built by MITS and put on the January 1975 cover of Popular Electronics, was a kit: a metal chassis, an Intel 8080 processor, front-panel toggle switches for input, and LEDs for output. It had no keyboard, no screen, and almost no memory. It was, by any practical measure, useless — and it changed everything.
A box that started an industry
The Altair's importance was not what it did but what it proved: that an individual, not an institution, could own a computer. Orders buried MITS. Hobbyists who bought it had to invent the rest — and they did. Paul Allen and Bill Gates wrote a BASIC interpreter for it, founding Microsoft. The Homebrew Computer Club formed largely to figure out what to do with these machines.
Why it matters
The Altair turned the abstract promise of personal computing into solder, switches, and a shipping address. It is the physical seed of the home-computer revolution: not elegant, not finished, but real and yours. Everything in this museum's personal-computing wing descends from the moment a hobbyist flipped its switches and watched the lights answer.
The lesson it set loose
A tool does not need to be polished to be revolutionary; it needs to be accessible. The Altair was barely a product, but it was a permission slip. It told a generation that the computer was no longer something you visited — it was something you could build, own, and bend to your will.
Next exhibit
The Chaos Computer Club