I wrote my first book on a Selectric typewriter, using carbon paper and the Prestige Elite typing ball just like this one. It's not the same typewriter. I found this one at Goodwill for $14. I didn't really have the space, so I thought about it. When I went back, it was half-price. It cost me another $75 to bring it back to top shape.
I'm writing the second book on a MacBook Pro. It doesn't need carbon paper, and research is done without index cards or taking a pen to the library. The entire computer weighs 12 pounds less than the typewriter. And they didn't let you bring typewriters into the library.
But writing books is still the same. Creating something, line by line, that makes meaning to you. Praying that it makes meaning to someone else too. Because every writer's biggest fear is not connecting.