smaller and smaller chips, circuit boards. so the closer together elements on a chip are, the fashion of motion of signals between them. there's something called moore's law, named for gordon moore. one who worked add intel. they are getting to the place where they can double the computeding power of a computing chip every 18 months or so. and this is what really maid the pow -- made the power explode. every 18 months these things were getting twice as good. >> you could get the whole computer on a chip. it was less expensive to manufacture. you had smaller which led to faster which lid ed to cheaper. >> under any other field of products things get more expensive over time, houses, refrigerators, milk. but not technology. one of the striking things about the development of hardware during the 1980s was the fact that it was getting so much powerful so rapidly that