and you might expect, it's from a fax machine companypic.twitter.com/3pOjavcVT0
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it's on ebay, here:https://www.ebay.com/itm/1983-Rapicom-Facsimile-Cost-Analyzer-Breakeven-Point-Telephone-Line-Cost/274178366254 …
TIL fax comes from facsimile
ya must be a young'in!!!
I love analogue computers
It’s for how many phone lines to buy?
No, it shows how much money a faster machine can save you in phone bills, presumably to convince you their more expensive digital fax machine is actually cheaper in the long run because it's faster. Phone use used to be billed per minute (at like 2 dollars a minute)
Christ, that looks so convoluted
woah a slide rule-like thing for cost calculations. nifty.
Looking about global developments we might need such stuff in the future again.
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