| 1/00 | Devices for processing exclusively digital data |
| 1/02 | Devices for processing exclusively digital data operating upon the order or content of the data handled |
| 1/04 | Devices for processing exclusively digital data operating upon the order or content of the data handled for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation |
| 1/06 | Devices for processing exclusively digital data operating upon the order or content of the data handled for performing computations using a digital non-denominational number representation, i.e. number representation without radix; using combinations of denominational and non-denominational number representations |
| 3/00 | Devices not provided for in group G06E 1/00, e.g. for processing analogue or hybrid data |