PDP-11 operating system by David Retz et al. First developed at the Speech Communication Research Laboratory (SCRL), later also Information Sciences Institute (ISI) and Stanford Research Institute (SRI). The files found here are from the Stanford Artificial Intelligence Laboratory (SU-AI, or SAIL).
ELF was popular on ARPANET, as a small host or a front end to a mainframe.
Other people involved:
- Earl Craighill
- Jon Miller
- Jim McClurg
- Bruce Schafer
- Stephen Casner
- Paul Raveling
- Billy Brachenridge
- Ian Merret
The SAIL files have been converted from PDP-10 36-bit words to ASCII text octets. Since the PDP-10 stores five 7-bit characters per word, the one additional bit is placed in the fifth octet. Some text files have line numbers and NUL padding between pages.