RFC 476

RFC 476: IMP/TIP Memory Retrofit Schedule (Revision 2) ✨

Okay bestie, let's do the title block first 🎀 This is RFC 476 (NIC 14920) by Alexander McKenzie from BBN-NET, dated March 7, 1973. It's Revision 2, and it updates RFC 447. It doesn't say it obsoletes anything. The header doesn't list a category, so I'm not making one up 💅

What Changed 🔄

This revision makes two kinds of changes to RFC 447 🫶 First, the retrofits to Utah, Belvoir, NOAA, USC, Stanford, ISI, Case, and CCA are done, so they're removed from the schedule ✅ Second, the retrofits to UCSB, ETAC, Aberdeen, and Rome got rescheduled 🗓️

The Revised Text of RFC 447 🌸

Here's the RFC 447 text, updated. During the first several months of 1973, every IMP and TIP is getting extra core memory 💖 When the retrofit program wraps up, the machines will have these memory sizes:

IMP (516 or 316) - 16K words

TIP - 28K words

TIP with Magnetic Tape Option - 32K words

Bestie, the TIP's core memory expansion means the TIP is going to two cabinets. Expect more floor space needed 🧚

The schedule is set up to line up with each site's usual monthly Preventive Maintenance, so users get as little disruption as possible 🙈 The work will often keep machines down longer than normal, though. The author plans to publish more RFCs to update this schedule as needed ✨

Any site worried about the TIP getting bigger, and therefore needing more floor space, should contact Hawley Rising (BBN) at (617)491-1850 ext. 473 📞 All dates below are written as (month/day) 📅

SRI (3/7)
ETAC (3/15)
FNWC (3/15
Rome (3/16)
UCLA (3/19)
AMES IMP (3/21)
GWC (3/22)

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 ]