I write on a computer, but I've run the complete gambit. When I was very young, I wrote with a ballpoint pen in school notebooks. Then I got pretentious and started writing with a dip pen on parchment (I wrote at least a novel-length poem that way). Moved on to a fountain pen. Then a typewriter, then an electric self-correct. Then someone gave me a word processor and I was amazed at being able to fit ten pages on one of those floppy discs.