a character within one of the regions 106 a and 106 b the stroke information is then fed to an internal processor for automatic character recognition once characters are recognized they are typically displayed on the screen 105 for verification and or modification the digitizer 160 records both the x y coordinate value of the current location of the stylus and also simultaneously records the pressure that the stylus exerts on the face of the digitizer pad the coordinate values spatial information and pressure data are then output on separate channels for sampling by the processor 101 fig5 in one implementation there are roughly 256 different discrete levels of pressure that can be detected by the digitizer 106 since the digitizer 39 s channels are sampled serially by the processor the stroke spatial data are sampled u201c pseudo u201d simultaneously with the associated pressure data the sampled data is then stored in a memory by the processor 101 fig5 for later analysis fig2 b illustrates the bottom side 100 b of one embodiment of the palmtop computer system of the present invention an optional extendible antenna 85 is shown and also a battery storage compartment door 90 is shown a communication interface 108 is also shown in one embodiment of the present invention the serial communication interface 108 is a serial communication port but could also alternatively be of any of a number of well known communication standards and protocols e g parallel scsi firewire ieee 1394 ethernet etc in fig2 b is also shown the stylus receiving slot or rail 350 fig3 is an exploded view of the palmtop computer system 100 in accordance with one implementation system 100 contains a front cover 210 having an outline of region 106 and holes 75 a.