One of the neat things about this is that it shows just how much of a technological leap integrated circuits and micro-processors were. Back in the 1950s all pr

One of the neat things about this is that it shows just how much of a technological leap integrated circuits and micro-processors were. Back in the 1950s all processors were built with individual transistors, even in the 1960s they were primarily built in the same way, with any use of integrated circuits only ganging together a small handful of transistors onto a single chip. Except today we have tremendous advantages in being able to build multi-layered printed circuit boards using layouts created on computers while placing the components automatically using pick and place machinery. The MOnSter 6502 would be a marvel of miniaturization for the 1960s and yet it relies on 21st century technology to attain a size of only 7000x the original 1975 part. And as they point out, more modern chips that were built only a few years later like the 68k (built in 1979) would translate to enormous board dimensions (19 square feet). So much of our world is built on the technology of microprocessors, it's easy to take it for granted.