An old chestnut that I am fond of digging up from the vax 4.3bsd
sys/vmparam.h:
* Just for fun: current memory prices are 4600$ a megabyte on VAX (4/22/81),
* so we loan each swapped in process memory worth 100$, or just admit
* that we don't consider it worthwhile and swap it out to disk which costs
* $30/mb or about $0.75.
Memory for a
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