To operate the keyboard proficiently it is necessary to use a 'touch' system, that is, to use the fingers without looking at them or without moving them away from the keybuttons.

To perform an amortized analysis, we use an accounting technique where we view the computer as a coin-operated appliance that requires the payment of one cyberdollar for a constant amount of computing time.

Floyd-Steinberg dithering

If you plan to output back to film, opticals and effects can be shot on film or generated by computer and then transferred to film.