'Interesting overview, but I have my doubts about its accuracy. Lisp seems to have been too popular in the mid-1980s, and at the same time he claims that Ada was the most popular language. Both seem highly unlikely to me. ' fully agree. I never saw a lisp, ada job offer! In the mid/late 1980s pascal and C were popular languages, whereas therestill were lots of cobol/fortran, mostly cobol, job offers.