| 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) |
| G06J | UKL | HYBRID COMPUTING ARRANGEMENTS (optical hybrid computing devices G06E 3/00; computer systems based on specific computational models G06N; neural networks for image data processing G06T; analogue/digital conversion, in general H03M 1/00) |
| G06J 1/00 | HGR | Hybrid computing arrangements (digitally- programmed analogue computers G06G 7/06) |
| G06J 1/02 | UGR1 | |
| G06J 3/00 | HGR | Systems for conjoint operation of complete digital and complete analogue computers |