Today's keyboards lack a certain gravitas that typewriters of the past provided. With some creative hacking, now you can utilise an old-school typewriter with the computing systems of today.
Jack Zylkin out of Hive76 in Philadelphia created plans which enable a typewriter to plug into a computer (or iPad) as a keyboard. The plans, which are available for download under the Creative Commons licence, use an Arduino controller to translate the action of the typewriter to digital input.
You can download the plans from the website and build one completely yourself, purchase a DIY kit which includes all of the hardware you need to complete the project, or even buy a pre-assembled typewriter.