IBM ATE & Amstrad PC1512
512k IBM ATE with Hercules graphics card, 16 channel 12 bit A-D converter and 8 channel 12 bit D-A converter hooked up to the photo-multiplier tube array on a polychromator, and an oscillating galvanometer refractor plate, all controlled from a turbo pascal data acquisition program. First built in 1988 and still plodding along. It's compadre is an Amstrad 1512, used to emulate a TTY terminal that controlled an electrothermal atomizer with high voltage discharge capability. Both are still operating and both are still used on a fairly frequent basis.