A Calculator is a small electronic device used to do basic mathematical calculations. Originally produced at TL–6 they are primitive, have limited mathematical capabilities, and are relatively expensive.
They continue to be produced through TL–8 where they are gradually replaced by more flexible Handcomps. The late TL–8 models are quite capable, with some limited programmability and graphic display capability, and very cheap. Some limited use TL–8 calculators can be produced for as little as Cr0.1 in massive numbers as novelty items.
Most calculators run on batteries, which allow use for a year or more, or incorporate small solar cells to provide all the power they need. Calculators do not have external connections, relying upon the user to input numbers and apply the results manually.