I don't want to get onto a whole rant about how much technology has changed, and what I had to put up with as a youth while all you whippersnappers have everything and don't even realize it, but the fact of the matter is, I used to use dial-up terminals to write code.
No one has to do that any more, but if you are interested in experiencing what those times were like, or you are just into recreations of old technology, take a look at Cathode, a Mac terminal emulator that emulates all of the crappy aspects of real terminals that no one wants to deal with any more: curved screens, CRT fuzziness, power-line noise, vertical retrace burps, the whole works.
Looking at the VT100 skin immediately took me back in a Proustian recollection of coding days gone by.
Oh, and they have a terrific payment model: Cathode is free, but the annoying CRT glitches get increasingly bad over time unless you buy a license. Genius.