-----------------------------------------------------------------------	                            MODIFICATION LEVEL SUMMARY

          Product Code         P/N                       Product Type 256 MSU   
          Page 1 of 1          Date Issued               Revision A           
        =======================================================================	          Mod Level 1      Reference #              Date Released 08/23/82
        -----------------------------------------------------------------------	          Change: 1) Change IC4, 7 & 8 from 74LS244 (010-0100) to 74F244
                     (010-0340).

          Reason: 1) Decreased access time for operation with WDI-II requires
                     high speed buffers on the MSU.