I have several copies of that one, along with several copies of the second classic book (the yellow-covered one, I forget the title right now). I also have the thin Focal programming book. Most are not out of boxes right now, but I have a few within reach. _pdp11 handbook_ This isn't the oldest one, since it mentions both the 11/20 and the 11/10, but it is old - 1970. _processor handbook_ (pdp11/20,15,r20) 1972 _processor handbook_ (pdp11/45, 1973 signed by Gordon Bell _peripherals handbook_ 1973-74 _pdp11/60 processor handbook_ 1977-78 EB-06498-76 _pdp11 processor handbook_ (pdp11/04/24/34a/44/7-0) 1981 EB-19402-20/81 (copyright 1981) EB-19402-20/85 (copyright 1985) (slightly thinner book) _peripherals handbook_ 1981-82 EB-20443-20 _pdp-11 Architecture Handbook_ 1983-84 EB-23657-18 _pdp-11 MICRO/PDP-11 Handbook_ 1983-84 EB-24944-18 At one point, I got myself on an automatic distribution list for any new handbooks... it was great. Yep, I have that also... Plus, the three binder set: LSI-11 Systems Service Manual Volume I - Systems Options Volume II - Module Options A-K Volume III - Module Options L-Z EK-LSIFS-SV And the seven volume set (currently in my office) on communications devices... I have an old DOS/Batch manual (the 8.5" by 11" by 2.5" thick manual and some old pdp-10 manuals as well (from 1970). I'm going to have to catalog them... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+