Forgot to say that the computer was a lot more accurate at calculations, particularly trigonometry. I had a set of 5-figure log tables but most people used 4-figures. Slide rules were nowhere precise enough, but handy for a "sanity check". Calculators were available but too expensive for most draughtsmen. The Chief Draughtsman had a couple of 4-function electro-mechanical calculators that could be used, but they were no help in most situations. And yes, even in the 1970s we had computer games replacing the traditional drawing-office favourites -- chess (with the board in the bottom of a drawer) and three-card brag (similar to poker but cards scored differently).
Forgot to say that the computer was a lot more accurate at calculations, particularly trigonometry. I had a set of 5-figure log tables but most people used 4-figures. Slide rules were nowhere precise enough, but handy for a "sanity check". Calculators were available but too expensive for most draughtsmen. The Chief Draughtsman had a couple of 4-function electro-mechanical calculators that could be used, but they were no help in most situations. And yes, even in the 1970s we had computer games replacing the traditional drawing-office favourites -- chess (with the board in the bottom of a drawer) and three-card brag (similar to poker but cards scored differently).
