In article <0be6ed16-2497-4785-8a06-191aa506e6dd at googlegroups.com>, Hans Vlems <hvlems at freenet.de> writes: > My question was whether the 11/20 had support for 18 bit addresses. I thought that the 11/20 was the only model limited to a 2^16 address space. Look a the 11/34.