Hersteller
- Cash Register (1)
- Casio (163)
- CDK (4)
- Centronics (9)
- CFT (2)
- Cikam (1)
- Citizen (104)
- Cognitive Solutions (1)
- Colex (7)
- Comitronics (3)
- Commodore (CBM) (11)
- Compactronic (1)
- Compaq (13)
- Comparex (4)
- Compex (4)
- Comprex (4)
- Compuadd (1)
- Compucorp (1)
- Compuprint (40)
- Comrex (7)
- Comterm (1)
- Concord (9)
- Contitronix (12)
- Copal (2)
- Correctronic (1)
- Courier (1)
- CPF (5)
- CPT (1)
- CRS (10)
- CTI (1)
- Cyber (2)
- Cybert (1)
- Cyntrex (1)