oa Civil Engineering = Siviele Ingenieurswese - Slide rule to computer - memoirs of greybeard engineers
The CED's early designs were by slide rule, manual (and later electric) calculators, and logarithmic tables. Perhaps the first electronic work was the capture, on Hollerith punched cards, of the 1954 traffic survey. Six years later they hired an ICT 1301, using in-house programmes in machine language, but with a Macro Auto Coding compiler for number crunching.
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