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Wikipedia: PL/I - http://en.wikipedia.org/wiki/PL/I_programming_language
An encyclopedia description of PL/I history with many links to programming terms. |
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Computer Languages History - http://www.levenez.com/lang/
Timeline chart, 1954 to today, printable; links to homes of many languages. |
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A Brief History of Programming Languages - http://www.byte.com/art/9509/sec7/art19.htm
A special Byte Magazine article published for Byte's 20th anniversary special report |
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The Retrocomputing Museum - http://www.catb.org/~esr/retro/
Dedicated to programs that induce sensations that hover somewhere between nostalgia and nausea. The freaks, jokes, and fossils of computing history. |
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Historic Documents in Computer Science - http://www.fh-jena.de/~kleine/history/
Original, historic first documents for many early programming languages, like language manualsa, scanned and converted to PDF form. |