> Definitely a.out pre-elf era Ignorant of the details of a.out vs elf, when the switchover was being discussed I thought this was a decision I’d have to make

> Definitely a.out pre-elf era Ignorant of the details of a.out vs elf, when the switchover was being discussed I thought this was a decision I’d have to make and agonized over what to choose, hoping I didn’t pick Beta while everybody else went VHS.