Typewriter
device · 1868 · Industrial Revolution
Mechanical printing of letters with keys (Sholes and Glidden).
Inventors: Christopher Latham Sholes, Frank Haven Hall, Carlos Glidden, Samuel W. Soule.
What it is made of
- Keyboard — has part. The keys drive levers with type.
- Lever — has part. Each key is a system of levers.
Principles and materials it uses
- QWERTY layout — uses. The QWERTY layout was created for Sholes’s typewriter.
- Cast iron — is made of. The casing is cast iron.
- Steel — is made of. The type is steel.
History: what it evolved from and what it influenced
- Command line — evolved into. The teletype was a printing terminal.
Things built in a similar way
- Movable type — works like. Each typebar carries a piece of movable type pressed against the paper.