RAM cards allow you to store more data in the Cambridge Z88. There are three slots, each of which may take up to 1 Megabyte of RAM, although it is advisable to use slots 1 and 2 for RAM leaving slot 3 available for EPROM. This is because slot 3 is the only one which can be used to record data onto EPROM. Also RAM cards will consume more power in this slot than in slots 1 and 2 and therefore reduce battery life.
If you remove a RAM pack from the Cambridge Z88 any data held in it will be lost instantly. Do not remove a RAM card unless you must. If you do have to remove a RAM card, the Cambridge Z88 will display FAIL in the top right hand corner of the screen. You will have to perform a soft-reset on the Cambridge Z88 and any suspended activities will be lost.