cdh@BBNCD3.ARPA (Carl D. Howe) (05/01/85)
Here's a useful statistic for people trying to guage whether "large" RAMs are cost effective: Assuming $5 per 256K RAM, you can now fully populate the address space of a 68000 (i.e. have a 16 MByte main memory) for a chip cost of $2560 (i.e. less than a MAC XL). If you want byte parity, the price goes up to $2880. Remember when 4K cost more than that? If you are now designing a general-purpose microcomputer product for sale in the next few years, and you have no way to use that amount of memory, perhaps it is time to think about a more modern approach. Old measurements of what is cost-effective may no longer apply. Carl P.S. I understand chip cost is not the only factor relating to cost of memory, but until recently, it certainly dominated.