Are there any other good examples of internal tools that became public over time?https://twitter.com/mwichary/status/1071629359839031296 …
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They couldn't justify the expense of a PDP-11 for operating system development, but they could justify it for an internal word processing service that just happened to also involve an operating system https://www.bell-labs.com/usr/dmr/www/hist.html …pic.twitter.com/Q95RFa0HDY
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