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'''SAIL''', the '''Stanford Artificial Intelligence Language''', was developed by Dan Swinehart and Sproull of the [[Stanford AI Project]] in 1970. It was originally a large ALGOL 60-like language for the DEC-10 and DEC-20.
Dan Swinehart & Bob Sproull, Stanford AI Project, 1970. A large ALGOL 60-like language for the DEC-10 and DEC-20. Its main feature is a symbolic data system based upon an associative store (originally called LEAP). Items may be stored as unordered sets or as associations (triples). Processes, events and interrupts, contexts, backtracking and record garbage collection. Block- structured macros. "Recent Developments in SAIL - An ALGOL-based Language for Artificial Intelligence", J. Feldman et al, Proc FJCC 41(2), AFIPS (Fall 1972). (See MAINSAIL).
TheSAIL's Stanfordmain Artificialfeature Intelligenceis Languagea usedsymbolic atdata SAILsystem based upon an associative store (theoriginally called placeLEAP). ItItems wasmay anbe stored as unordered sets or as associations (triples). Other features include processes, events and interrupts, contexts, backtracking and record garbage collection. It ALGOLalso 60has derivativeblock-structured withmacros, a coroutining facility and some new data types intended for building search trees and association lists.
A number of interesting software systems were coded in SAIL, including early versions of [[FTP]] and [[TeX]] and a document formatting system called PUB.
In 1978, there were half a dozen different operating systems for the PDP-10: WAITS (Stanford), ITS (MIT), TOPS-10 (DEC), CMU TOPS-10 (CMU), TENEX (BBN), and TOPS-20 (DEC, after TENEX).
SAIL was ported from [[WAITS]] to [[ITS]] so that [[MIT]] researchers could make use of software developed at [[Stanford University]]. Every port usually required the rewriting of I/O code in each application.
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