| Casio Computer Co., Ltd. |
| Centronics Data Computer Corp. |
| Charles Xavier Thomas |
| Charles Xavier Thomas / Paris |
| Cherry Europe GmbH |
| Cherry SE |
| Chicony Electronics & Co Ltd |
| Chipcom Corporation |
| Cisco Systems |
| Cisco Systems |
| Citizen Business Machines Inc. |
| Citizen Systems Co. LTD |
| Colby Computers Inc. |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Commodore International AG |
| Compaq Computer Corp. |
| Compaq Computer Corp. |
| Compaq Computer Corp. |
| Compaq Computer Corp. |
| Compaq Computer Corp. |
| Compaq Computer Corporation |
| Compucorp Computer Design Corporation |
| Compucorp Computer Design Corporation |
| Computergesellschaft Konstanz |
| Computers International |
| Connection GmbH |
| Conner Peripherals |
| Contex, Gebr. Carlsen |
| Contex, Gebr. Carlsen |
| Contina Ltd. |
| Contina Ltd. |
| Contina Ltd. |
| Control Data Corp. |
| Control Data Corp. |
| Control Data Corp. |
| Control Data Corporation |
| Control Data Corporation |
| Control Data Corporation |
| Control Data Corporation |
| Control Data Corporation |
| Control Data Corporation |
| Control Data Corporation |
| Control Data Corporation |