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Network Working Group                                 Alexander McKenzieRFC # 476                                             BBN-NETNIC # 14920                                           March 7, 1973IMP/TIP Memory Retrofit Schedule (Revision 2)This revision contains two types of changes to RFC #447.  First, theretrofits to Utah, Belvoir, NOAA, USC, Stanford, ISI, Case, and CCA havebeen completed and are therefore removed from the schedule.  Second, theretrofits to UCSB, ETAC, Aberdeen, and Rome have been rescheduled.The revised text of RFC #447 follows:During the first several months of 1973 we will be retrofitting each IMPand TIP with additional core memory.  At the end of the retrofitprogram, the memory sizes of the various machines will be as follows:    IMP (516 or 316) - 16K words    TIP - 28K words    TIP with Magnetic Tape Option - 32K wordsIn addition, the expansion of the TIP core memory will necessitateenlarging the TIP to two cabinets.Listed below is the schedule for the remaining retrofits.  We havearranged this schedule to coincide with the usual monthly PreventiveMaintenance at each site so as to minimize user inconvenience, but thework required will frequently require the machines to be down longerthan normal.  I will issue additional RFC's updating this schedule asnecessary.Any site which anticipates difficulty with the expansion of TIP size,and thus the floor space requirement, should contact Hawley Rising (BBN)at    (617)491-1850 ext. 473All dates given below are below in the form (month/day)    SRI (3/7)    ETAC (3/15)    FNWC (3/15    Rome (3/16)    UCLA (3/19)    AMES IMP (3/21)    GWC (3/22)McKenzie                                                        [Page 1]

RFC 476         IMP/TIP Memory Retrofit Schedule (Rev 2)      March 1973    Carnegie (4/4)    SDC (4/17)    Illinois (4/18)    UCSB (5/1)    Aberdeen (postponed indefinitely)       [ This RFC was put into machine readable form for entry ]       [ into the online RFC archives by Alex McKenzie with    ]       [ support from GTE, formerly BBN Corp.             9/99 ]McKenzie                                                        [Page 2]