a computer includes a processor for processing data , and memory modules for storing the data . each memory module includes a read - write memory and a configuration memory . the configuration memory contains memory module characteristic information , is adapted for storing a sequence of binary data values , accessing the stored binary data only in sequential order , and only at the first data value or the next data value , and has a next signal pin . the configuration memory is adapted for receiving at the next signal pin , and responding to , a cas signal used by standard drams . in other features of the invention , the memory module characteristic information includes an identification code for the manufacturer of the memory module , a part number for the memory module , the depth of the memory , access times to read full and page , and delay times to read and write full and page .