1.   Parcels delivery is another area where pen computers could make a big impact.

2.   And it once sold a tablet-size pen computer using the Geos operating system -- a product that is now extinct.

3.   A. The assumption was pen computers would come outand people would find them interesting and enticing, and that all they needed was software.

4.   The tablet PC is based on a Mitsubishi pen computer with a built-in hard drive, but future versions may retrieve information via radio waves.