Its like a computer, without facebook (or motobrick or advrider).
1939 Remington Noiseless DeLuxe. My mom wrote her master's thesis with this. I believe it was my grandmother's before my mom's.
I also just bought a 50's Smith Corona portable on Craigslist. I had to give the old one back to my mom and sister (she's a hipster).
The build quality on these is amazing. All made in USA. 70 years old, and 55 years of use, and it still works perfectly. Just adjusted a few things on the Remington, and replaced the carriage tension string/cable (not spring).