26 Nov
2014
26 Nov
'14
6:21 p.m.
Rich wrote:
ITS ran on exactly 1 KL, MIT-MC. It was a "Model
A" system, probably a KL10B
but I'd have to ask the owner. It's currently in storage in Sweden.
....
All KL10-based systems have RH20s. The front end
11/40 has an RH11, and one
disk (at least) has to be dual-ported between the front end and the -10.
I think MIT-MC was a "1080" and only had RH10s. I think they used a
DL10 for PDP11 interfacing (including chaosnet and some disks), and
ran KLDCP (pre RSX20) on the console front end....
I don't remember ever having heard the ITS equivalent of "Tony in RH20
Land"... Ah... here is some of ITS SYSTEM;CONFIG 188:
IFE MCOND MX,[
DEFOPT KL10P==1 ;MX IS WHAT WE CALL THE KL10 NOW
DEFOPT MAXJ==120. ;MAX NUMBER OF JOBS ALLOWED
DEFOPT SWBLK==1 ;1 => SWAP BLOCKING, 0 => PRIVILEGED USER
DEFOPT SWPWSP==0 ;NO WORKING-SET SWAP SCHEDULER
DEFOPT PAGPRE==1 ;PAGE-IN PREEMPTION
DEFOPT SCHBLN==20. ;NUMBER OF RUNNABLE JOBS TO REMEMBER
DEFOPT NQS==6 ;# OF DISK UNITS (3 RP04'S AND 3 T-300'S)
DEFOPT NTUTBL==2 ;TUTS ARE TWO BLOCKS LONG
DEFSYM NUDSL==500. ;# USER DIRECTORIES ON DISK
DEFOPT NQCHN==50. ;NUMBER 2314 CHNLS
I _think_ this means the number of open files...
DEFOPT RH10P==1 ;HAS DEC RH10 DISK CONTROL (RP04)
DEFOPT T300P==3 ;TRIDENT T-300S VIA PDP-11 START AT DRIVE 3
ISTR a disk farm labeled "Moon's Laundromat"
...
DEFOPT DL10P==1 ;HAS DL10/DC76 TTY CONTROLLER
...
DEFOPT DLCP==1 ;CHAOS NET GOES THROUGH DL10
....
DEFOPT NETYS==33. ;# KL-10 DTE20 TTYS
NEWDTE==1 ;TEMPORARY CONDITIONAL TO ENABLE NEW DTE20 PROTOCOL
I hadn't remembered *THAT*! ^^^^
DEFOPT NDLTYS==4. ;# TTYS ON DL10/DC76
;Note: 3d TTY on DL10 is VT52 by console.
It looks like:
AIKA had a systems concepts DC10
MLKA and DM had RP10s (RP02/3) controllers