I highly recommend Nathan Ensmenger’s The Computer Boys Take Over for a look at the history of the so-called “skill gap” (which is mostly bullshit) since the 1960s. It has a little to do with the nature of the subject matter, but it has a lot more to do with historical contingencies and internal dynamics at schools and companies.
https://www.amazon.com/dp/0262517965/ref=cm_sw_r_cp_awdb_t1_...
Grace Hopper and the Invention of the Information Age (2009): https://www.amazon.com/Invention-Information-Lemelson-Studie...
From airline reservations to Sonic the Hedgehog - a history of the software industry (2003): https://www.amazon.com/Airline-Reservations-Sonic-Hedgehog-C...