TRW Report.

Good find... I loved mine. The PDT was a kind of orphan child. It wasn't Qbus or Unibus -- it was NO BUS. It was a nice bounded system (an 11/03 LSI CPU with up to 64k of memory and it supported only either: 1. DECtapeII (the PDT11/130) or 2. 8 inch RX01-almost compatible floppies (the PDT11/150) or 3. Neither (the PDT 11/110) It supported one Sync/Async modem port and up to 4 DL11-like ports (with software settable baud rates) and one Serial Printer port . The ports ran (if I remember correctly) up to 9600 baud, but they would drop bits if multiples were run at high speed at the same time. The disks were accessed via 8085 controlled software which controlled the disks with special PD drivers and special PD bootblocks... They didn't boot standard RX01 os distributions, so there was one RX01 that shipped with RT that was PDT bootable for the 11/150's. The OS was either RT11 v4 (or later) or you rolled your own or downloaded an application to run stand alone over the serial link. The peripherals were never expandable, although a couple of engineers supposedly tried hacking a hard disk interface off the stacking connector in the 11/150. (An IDE interface would be slick if someone could do it). I had the MiniMinc version which had the EIS/FIS microms making it a pretty slick 11/03-ish box. I genned up multiterminal RT11 and ran the console on an LA34, a modem and PC with a comm program running on one port and a VT100 running RTMON on another. Multiuser basic was quite slick. I wish I still had the software and the machine. This is just a quick summary -- any other questions? Bill --- bpechter@shell.monmouth.com|pechter@pechter.dyndns.org Three things never anger: First, the one who runs your DEC, The one who does Field Service and the one who signs your check.