I’ve been a software developer since 1998. I didn’t actually like computers until I started working at Amazon.com back in the days when they sold only books. I got a job in their customer service department after a brief stint of teaching in the Seattle public schools. At the time, Amazon’s customer support was delivered primarily through email. If you had a question, you’d write to orders@amazon.com, and one of the customer reps in Seattle would write back.
Everyone in customer service worked at a Unix terminal, using Emacs as a mail client, and a set of command line tools with names like orderstat and customerstat to track down problems.