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Gigatron, TTL computer kit without a CPU
- FullyFunctional 8y agoProvenance: There was a recent post about PiDP-11 which is awesome in itself, but the page led to this which is probably more remarkable than is apparent at first; a Single Board Computer which implements all logic in TTL and with a remarkable functionality given the relatively few chips. There are many SBCs of the era using more chips that this, despite having a Z-80 or 6502 onboard.
- IWeldMelons 8y agoI bet these are built with 74HCxx ICs, which are not TTL whatsoever; in fact they are CMOS.
- ttldude 8y agoYou can build them with 74xx, 74LSxx as well as 74HCTxx, or mix those. Mixing with 74HC is also possible if you're careful, but full 74HC won't work.