And in the days before the internet, they likely had a bookshelf full of reference manuals.
True story: when I became a programmer in the 1990s, I used to buy the printed manuals for the Java APIs as they were released. At one of my first interviews (for a Perl job), I was given the Camel Book as reference for the (handwritten) programming test.
True story: when I became a programmer in the 1990s, I used to buy the printed manuals for the Java APIs as they were released. At one of my first interviews (for a Perl job), I was given the Camel Book as reference for the (handwritten) programming test.