If the 65816 (or something very similar to it) was available in 1978, the computing world would probably be very different now.   1978 was the year that both the 8086 and 6809 were released, which were similar 8&#x2F;16 bit chips.    1979 saw the release of the 68000, which was a much more powerful chip than 1983&#x27;s 65c816.