AFAIR I read about memory prices in some book about mainframes.
According to the book the ferrite memore cost was 1.3 USD per BYTE at
the beginning of S/360 and quickly dropped to 1.0 USD/BYTE.
So, 1MB was over million dollars.
BTW: At the time of CP/M (late 70's/erarly 80's) cost of 64kB RAM was
about 100k PLN (polish currency), it's about 30k USD - at current prices.
BTW: Lately IBM claimed that 1GB of memory for mainframe costs 8000USD.
It is few *hundreds* times more than market price for memory in PC
(which is not much different).
Nowadays mainframe memory prices have dropped down significantly.
--
Radoslaw Skorupka
Lodz, Poland
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