Around 6 million instructions per second in 1969, up to 25 million per second by 1985 when the first PCs became popular. An Ipad is still not that powerful but are great for internet searches but just do not have the raw, high volume computing power of 30 years ago.<quoted text>
what is the computing power of an IBM mainframe computer of 1969 compared to today's iPad? how about compared to the supercomputers of today?
No one other than you would compare an Ipad with an IBM mainframe. That would be comparable to using an 18 wheel Kenworth to haul a bushel of apples, or try to haul enough I-beams to build a bridge in the back of my old pickup truck. Absolutely silly, similar to some of your other assumptions.