This fact is probably most important during program development. It has hardware segmentation and 256K of core can be attached. Perhaps more important is the fact that UNIX is essentially a two-man operation at present. Anyone who contemplates a UNIX installation should have available some fairly sophisticated programming talent if any modifications planned, as they almost certainly will be. The amount of time that we can spend working on behalf of, or even advising, new UNIX users is limited.
Documentation exists, but never seems to be complete.