One of the big investment banks use TCL/TK, for real-time e-trading. Source my l... | Hacker News

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		doublerabbit 4 months ago \| parent \| context \| favorite \| on: Red: A programming language inspired by REBOL One of the big investment banks use TCL/TK, for real-time e-trading. Source my last gig. The "important software" are normally kept behind NDAs, so you never hear about their uses. TCL was also used on the Mars Rover. Take a look for yourself: https://wiki.tcl-lang.org/page/Who+Uses+Tcl

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