[adrian_b]

Regarding autocomplete, while I have first used autocomplete only in 1990 (in the text editor BRIEF), autocomplete had already existed in 1972, in the command line interpreter of the operating system TENEX for DEC PDP-10 (i.e. the equivalent of the UNIX shell).

TENEX is an OS from which many innovations have come.

For instance it is the source of the BSD, then UNIX, "mmap" for creating memory mappings for private memory pages, shared memory pages or memory-mapped files. Also copy-on-write memory comes from TENEX.