RFC 447

IMP/TIP Memory Retrofit Schedule (Revision 1) ✨

RFC 447 🎀 is a Revision 1 update to RFC 434 💜 and it's written by Alex A. McKenzie from BBN-NET 🦋. It's NIC # 14104 and it was published on January 29, 1973 📅. The title block says it updates RFC 434 and doesn't obsolete anything 🫶.

What's New in This Revision 💅

okay so this revision has two major changes 😭. First, every retrofit that was scheduled before February 1st is now done, so those sites are gone from the schedule ✅. Second, the CCA retrofit got moved up from 3/20 to 2/28 🏃‍♀️💨. That's it, that's the tea 🍵.

The Revised Text of RFC 434 🌸

Okay, here's the full RFC 434 text, updated for the new schedule 🧚

During the first several months of 1973, we're retrofitting every IMP and TIP with extra core memory 🧠✨. Once the whole retrofit program is finished, the memory sizes will look like this:

IMP (516 or 316) - 16K words
TIP - 28K words
TIP with Magnetic Tape Option - 32K words

Also, making the TIP's core memory bigger means the TIP is going to need two cabinets instead of one 📦📦. It's giving "more hardware, more space" 😭.

The schedule was set up to line up with the usual monthly Preventive Maintenance at each site, which keeps user inconvenience as low as possible 🫶. Heads up though: the work will often keep machines down longer than usual 💀. I'll put out more RFCs to update this schedule whenever it's needed 📝.

If your site is worried about the TIP getting bigger and needing more floor space 🥺, reach out to Hawley Rising (BBN) at:

(617) 491-1850 ext. 473

All dates below use the (month/day) format 📆. Here's the rest of the schedule, for the retrofits that are still coming up 💖:

Utah (2/1)
UCSB (2/6)
Belvoir (2/8)
NOAA (2/12)
USC (2/13)
Stanford (2/14)
ETAC (2/15)
Aberdeen (2/22)
ISI (2/22)
Case (2/26)
CCA (2/28)
SRI (3/7)
Rome (3/14)
FNWC (3/15)
UCLA (3/19)
AMES IMP (3/21)
GWC (3/22)
Carnegie (4/4)
SDC (4/17)
Illinois (4/18)

⚠️ Quick reminder: the CCA date is now 2/28, not 3/20. Don't let it slip past you bestie 😤🔥.

Machine-Readable Archive Note 🌈

[ 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 ]