Abstract: The present invention relates to an input apparatus for a computer system which includes a pointer device operable by a user, a symbol display system adapted to display a plurality of symbols to a user, and on or more pointer selection sensors adapted to sense the selection of one or more symbols by the pointer device. The symbol display system is adapted to display a plurality of input symbols and at least one commit symbol, whereby selection of a commit symbol by the pointer device will cause the last input symbol selected to be supplied by an associated computer system as input. The invention may be particularly suitable for use by members of the disabled and/or aged community.