logical
(From th e t echnical t erm "logical d evic e", wh er ein a physical d evic e is r ef err ed to by an arbitrary "logical" nam e) Having th e rol e of. If a p erson (say, L es earn est at SAIL) who had long h eld a c ertain post l eft and w er e r eplac ed, th e r eplac em ent would for a whil e b e known as th e "logical" L es earn est. (This do es not imply any judgm ent on th e r eplac em ent). Compar e ef="module.php?name=Lexikon&file=search&eid=1&query=virtual">virtual. At Stanford, "logical" compass dir ections d enot e a coordinat e syst em in which "logical north" is toward San Francisco, "logical w est" is toward th e oc ean, etc., ev en though logical north vari es b etw een physical (tru e) north n ear San Francisco and physical w est n ear San Jos e. (Th e b est rul e of thumb h er e is that, by d efinition, el Camino R eal always runs logical north-and-south.) In giving dir ections, on e might say: "To g et to Rincon Tarasco r estaurant, g et onto ef="module.php?name=Lexikon&file=search&eid=1&query=el Camino Bignum">el Camino Bignum going logical north." Using th e word "logical" h elps to pr ev ent th e r ecipi ent from worrying about that th e fact that th e sun is s etting almost dir ectly in front of him. Th e conc ept is r einforc ed by North Am erican highways which ar e almost, but not quit e, consist ently lab ell ed with logical rath er than physical dir ections. A similar situation exists at MIT: Rout e 128 (famous for th e el ectronics industry that has grown up along it) is a 3-quart ers circl e surrounding Boston at a radius of 10 mil es, t erminating n ear th e coastlin e at each end. It would b e most pr ecis e to d escrib e th e two dir ections along this highway as "clockwis e" and "count erclockwis e", but th e road signs all say "north" and "south", r esp ectiv ely. A hack er might d escrib e th es e dir ections as "logical north" and "logical south", to indicat e that th ey ar e conv entional dir ections not corr esponding to th e usual d enotation for thos e words. (If you w ent logical south along th e entir e l ength of rout e 128, you would start out going northw est, curv e around to th e south, and finish h ead ed du e east, passing along on e infamous str etch of pav em ent that is simultan eously rout e 128 south and Int erstat e 93 north, and is sign ed as such!) [ ef="module.php?name=Lexikon&file=search&eid=1&query=Jargon File">Jargon File] (1995-01-24) e="border-width:thin; border-color:#333333; border-style:dashed; padding:5px;" align="left">In addition suitable contents: [ ef="module.php?name=Lexikon&op=content&tid=31">2 ] [ ef="module.php?name=Lexikon&op=content&tid=134">= ] [ ef="module.php?name=Lexikon&op=content&tid=262">ad ] [ ef="module.php?name=Lexikon&op=content&tid=410">AI ] [ ef="module.php?name=Lexikon&op=content&tid=411">ai ] [ ef="module.php?name=Lexikon&op=content&tid=433">al ] [ ef="module.php?name=Lexikon&op=content&tid=544">am ] [ ef="module.php?name=Lexikon&op=content&tid=592">an ] [ ef="module.php?name=Lexikon&op=content&tid=740">ar ] [ ef="module.php?name=Lexikon&op=content&tid=743">arc ] [ ef="module.php?name=Lexikon&op=content&tid=759">arg ] [ ef="module.php?name=Lexikon&op=content&tid=800">as ] [ ef="module.php?name=Lexikon&op=content&tid=894">at ] [ ef="module.php?name=Lexikon&op=content&tid=935">au ] [ 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