On Wed, Jan 23, 2008 at 10:59:56PM -0800, silvercreekvalley wrote: The same execution speed? Yes, I believe so. I'm not sure. I've never compared relative PDP-11 performance, but there should be some literature from the period that does. Yes.... 18-bit address bus. no mapping. It _should_ be 2Mwords, but only if you have a KT-24 (MMU) board installed. Then, I think it's only the same 256Kwords as an 11/34, since there's no Unibus Map. I _think_ that the 11/24 can use the same memory as an 11/44 (256K and 1MB boards), but someone with contant network access should be able to verify that. -ethan -- Ethan Dicks, A-333-S Current South Pole Weather at 24-Jan-2008 at 07:20 Z South Pole Station PSC 468 Box 400 Temp -29.7 F (-34.3 C) Windchill -47.1 F (-43.9 C) APO AP 96598 Wind 5.1 kts Grid 72 Barometer 686.2 mb (10395 ft) Ethan.Dicks at usap.gov http://penguincentral.com/penguincentral.html