CCA ICCC weather demo
RFC 420

Document Type RFC - Unknown (January 1973; No errata)
Last updated 2013-03-02
Stream Legacy
Formats plain text pdf html bibtex
Stream Legacy state (None)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state RFC 420 (Unknown)
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                          H. Murray
Request for Comments: 420                Computer Corporation of America
NIC 12764                                                04 January 1973

                         CCA ICCC WEATHER DEMO

   THE WEATHER DEMO ORIGINALLY DEVELOPED FOR THE ICCC SHOW IS NOW
   GENERALLY AVAILABLE.  IT IS A VERY NICE NETWORK DEMO SINCE IT REALLY
   CAN/DOES RUN ON TWO MACHINES.

   THIS DEMO IS TWO INDEPENDENT PROGRAMS.  TOGETHER THEY TRY TO ANSWER
   ENGLISH QUESTIONS ABOUT THE WEATHER.  FOR EXAMPLE, 'DID IT RAIN IN
   BOSTON ON OCTOBER 7?'.  THE NATURAL LANGUAGE PROGRAM IS WRITTEN IN
   LISP.  IT IS A MODIFICATION OF A SYSTEM DEVELOPED BY T.  WINOGRAD AT
   MIT.  THE OTHER HALF IS A PRIMITIVE DATACOMPUTER.  THE DATACOMPUTER
   PROVIDES NETWORK DATAMANAGEMENT FACILITIES AND WILL INCORPORATE THE
   TRILLION-BIT UNICON CURRENTLY BEING INSTALLED AT AMES.

   THE TWO PROGRAMS COMMUNICATE VIA DATALANGUAGE USING THE NET.

   'WEATHER' NOW USES HOST '37' AS THE LOCATION OF THE DATACOMPUTER.
   THIS FIXES THE OLD 'CCA' NOT IN THE HOST TABLES BUG.

   KEEP IN MIND THAT IS AN EVOLVING SYSTEM, WE PLAN TO IMPROVE 'WEATHER'
   AND THE DATACOMPUTER THAT IT USES, SO THINGS THAT WORK ONE DAY MAY
   GET BROKEN THE NEXT.

AVAILABILITY

   'WEATHER' (THE LISP HALF) IS A REAL MACHINE USER - BOTH CPU AND CORE.
   WE WOULD OBVIOUSLY PREFER THAT YOU RUN IT ON YOUR MACHINE.  IF WE ARE
   REALLY EMPTY (WHICH FREQUENTLY HAPPENS AT 3 AM) FEEL FREE TO RUN IT
   ON OUR MACHINE.  SINCE OUR SYSTEM HAS NO DRUM, AND WEATHER TAKES ALL
   OF CORE, PLEASE CHECK WITH SOMEBODY AT CCA BEFORE RUNNING WEATHER IF
   WE ARE DOING ANYTHING AT ALL.  IT IS REALLY A MAJOR LOAD ON OUR
   MACHINE.

   SINCE THE DATACOMPUTER IS LESS OF A LOAD, THE SYSTEM WILL BE MORE
   AVAILABLE IF YOU CAN RUN 'WEATHER' ON YOUR MACHINE.  WE WILL TRY TO
   RUN THE DATACOMPUTER DURING NON-PRIME TIME.  IT CAN BE THOUGHT OF AS
   THE SERVER HALF OF THIS COMBINATION.  PRIME TIME HERE IS 1 TO 5 PM
   EASTERN TIME, BUT THE MORNING IS FREQUENTLY QUITE BUSY TOO.  PLEASE
   DO NOT USE THE DATACOMPUTER DURING THIS TIME.  IT WILL SAVE US THE
   EFFORT OF TURNING IT OFF.  CURRENTLY, ONLY ONE USER AT A TIME CAN RUN
   - A LIMITATION OF THE DATACOMPUTER THAT WILL GO AWAY SOMEDAY.

Murray                                                          [Page 1]
RFC 420                  CCA ICCC Weather Demo              January 1973

   IF YOU WANT TO RUN A DEMO (NOT JUST PLAY AROUND) WE WILL PROBABLY BE
   ABLE TO COOPERATE.  PLEASE CALL TO MAKE ARRANGEMENTS WELL IN ADVANCE.
   WE STRONGLY RECOMMEND THAT YOU DO NOT TRY TO GIVE AN IMPORTANT DEMO
   UNLESS YOU HAVE USED BOTH VERSIONS OF THE SYSTEMS THAT WILL BE USED
   FOR THE DEMO.  EVEN WE GET IN TROUBLE WHEN WE FORGET TO REHEARSE
   THINGS A BIT.

   WEDNESDAY MORNING IS SCHEDULED PREVENTIVE MAINTENANCE TIME.  OUR
   MACHINE WILL NOT BE UP BETWWEN 9 AND 12, BUT IT FREQUENTLY IS DOWN
   PAST NOON.

MORE INFORMATION

   FOR THE LATEST INFORMATION, LOOK AT *.TXT IN <WDB-DEMO> AT CCA.  IN
   PARTICULAR, MESSAGE.TXT SHOULD BE A QUICK SUMMARY OF ANY OTHER
   INTERESTING TXT FILES.  THE LATEST VERSION OF THIS FILE (IN RUNOFF
   FORMAT) IS <HGM-MEMOS>ANNOUNCE.RNO.

   THE LATEST VERSION OF THE LISP PROGRAM WILL BE IN <WDB-DEMO> AS
   WEATHER.SAV. NORMAL FTP CAN BE USED TO COPY IT - IT IS 400+ PAGES.
   IT TAKES 6 MIN TO TRANSFER IT TO OURSELVES (1.5 MIN OF CPU, 22KBAUD)
   WHEN THE MACHINE IS VERY LIGHLY LOADED.  BE SURE TO SET THE BYTE SIZE
   TO 36 ('TENEX' COMMAND TO FTP) SINCE THIS IS A SAVE FILE.

PROBLEMS

   IF YOU FIND ANY PROBLEMS WITH LISP HALF, PLEASE USE SNDMSG TO SEND
   THINGS TO JEFF HILL - HE IS JMH@CCA.  WE ARE INTERESTED IN EXAMPLES
   WHICH LOOK LIKE THEY SHOULD WORK BUT DON'T.  IF YOU HAVE ANY COMMENTS
   ABOUT GENERAL OPERATIONS GLITCHES - LIKE THE DATACOMPUTER IS NOT UP -
   BITCH TO ME - HGM@CCA.  CCA IS HOST 31 DECIMAL, 37 OCTAL.

USING THE SYSTEM

   AFTER STARTING WEATHER, THE SYSTEM WILL INITIALIZE ITSELF, TYPE OUT
   SOME MESSAGES, AND ASK FOR THE JULIAN DATE (REALLY THE DAY NUMBER OF
   THE YEAR OF 'TODAY').  300 IS THE BEST ANSWER.  THAT MAKES 'TODAY' BE
   OCT 26, THE LAST DAY OF THE ICCC DEMO, AND ONE DAY PAST THE LATEST
   DATA.  IF YOU TYPE SOME OTHER NUMBER, 'YESTERDAY', AND 'LAST WEEK'
   WON'T WORK AS WELL.  THE SYSTEM PROMPTS WITH 'READY' WHEN IT IS READY
   TO ACCEPT A SENTENCE.  BE SURE TO END THE SENTENCE WITH THE PROPER
   PUNCTUATION.  SENTENCES MAY BE EDITED WITH:

      ^A (CONTROL A) -- DELETES LAST CHARACTER OR WORD TYPED

      ^R (CONTROL R) -- RETYPES SENTENCE SO FAR

      ^Q (CONTROL Q) -- DELETES ENTIRE SENTENCE

Murray                                                          [Page 2]
RFC 420                  CCA ICCC Weather Demo              January 1973

      ^X (CONTROL X) -- SAME AS CONTROL Q

   IN ADDITION, TWO CONTROL CHARACTERS CAN BE USED DURING THE PROCESSING
   OF SENTENCES, ^E (CONTROL E) ABORTS THE PROCESSING OF THE SENTENCE
Show full document text