|An Altair 8800
||[Apr. 6th, 2013|02:34 pm]
This was the inexpensive device which arguably marked the beginning of the personal computer industry, even though as originally shipped you could only program it by using the top row of switches to enter a single microprocessor instruction at a time, and its only output was via the row of lights you see above those switches.
Related: The Altair 8800 operator manual