| G | SK | PHYSICS |
| G06 | KL | COMPUTING; CALCULATING; COUNTING (score computers for games A63B 71/06 , A63D 15/20 , A63F 1/18; combinations of writing implements with computing devices B43K 29/08) |
| G06E | UKL | OPTICAL COMPUTING DEVICES (optical logic elements per se G02F 3/00; computer systems based on specific computational models G06N; digital storage using optical elements G11C 13/04) [5] |
| G06E 1/00 | HGR | Devices for processing exclusively digital data [5] |
| G06E 1/02 | UGR1 | | . | operating upon the order or content of the data handled [5] |
|
| G06E 1/04 | UGR2 | | . . | for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation [5] |
|
| G06E 1/06 | UGR2 | | . . | 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 [5] |
|
| G06E 3/00 | HGR | Devices not provided for in group G06E 1/00 , e.g. for processing analogue or hybrid data [5] |