I remember having to write an IBM 650 emulator using IBM 360 assembler language in 1978/1979 as an assignment at the University of Iowa. We had to account for

I remember having to write an IBM 650 emulator using IBM 360 assembler language in 1978/1979 as an assignment at the University of Iowa. We had to account for the drum rotation speed and where instructions were placed on the drum for efficiency. At that time, they did not yet offer a degree in computer science, so my major was mathematics with a minor in computer science. I took every available computer science class and had to take a “filler class” in COBOL from the college of Business. I went onto my first job after graduating in 1970 to write Assembler language code for one of the first online transaction processing systems in CICS for a hospital patient registration system. It was an amazing time and experience.