>On the TI83 box, it says that there is 32K of RAM. Neat. Only 27K can be >accessed. What exactly is the last 5 K used for?? Is it reserved for >math operations?? or does the ROM take it?? The remaining 5Kb holds the ROM. It is the same in electronic organisers etc, there is a reserved area for the ROM and a users area. From, Wesley Moore ______________________________ Email: moore.w@patash.com.au