S-100 Popula OE bus Mos variet o microprocesso implementations IEE standard Extremel wel define an eas t conform N chang i ou hardwar designs Onl on Unisof UNI port Mos popula multi-processo environment Goo DM devic support 2 bi addressin (fit wel wit 68 devices) Difficul t coo becaus o onboar regulator althoug thes reduc tota syste noise. Mos compac bu (althoug thi limit layouts) Ove 5 boar manufacturers Popula iternationally Wides variet o device supported Highes incompatabilit facto du t olde no-standar designs N chi manufacture suppor (o competition) Probabl 500,00 unit i fiel (Microsystem estimate) Magazin support Designer an technica staf shortages Easies t implemen variou processors N roo fo 3 bit Mos operatin systems CP/M MP/M OASIS IDRIS UNIX TURBODOS CPM68K CPM86 MPM816 CONCURREN CPM86 MSDOS SYSTEM FORTH NDOS CDOS MULTIBUS Mos popula OE bus Full regulate supplies Mos popula 6800 an 6801 bus 1603 implementation Popula mult-processo environment Secon mos popula 808 bus Large layou are (hold abou 30 mor chips Easie t cool N roo fo 3 bit Wid variet o device supported 1 SM an hig performanc dis controllers 2 Tap controllers 3 EC memor (u t Mbyte) 4 Hig capacit vide boards 5 Etherne controllers Smar SAS controllers 7 I circui emulator an debuggers Designer an technica peopl mos availabl o busses * Roughl sam cos a S-10 whe regulator ar considered possibl 15 mor becaus o siz an fingers Eas an chea solutio t Unisof UNI port IEEE-79 standar bu som vagarie exis i implementations Easies bu t migrat fro S-100 .pa VME Tru 3 bi bu Internationa "Eurocard for facto (doubl an triple) Popula wit 6800 an 68010 NS 1603 implementation Mor expensiv tha multibus N IEE standar supporte b Motorola Signetic an Phillips No lo o device supporte mostl fo on supplie systems Timin no wel specifie an no easil adapte t 808 type processors. Har t mov ou design to DEC Wel defined Popula wit OEM Ver difficul t mov ou design to Paten o backplan b DEC Wel establishe market Multitud o device supported Othe tha DEì fe other micro-processo implementations N IEE standard Expensive .pa Versabus Man 6800 implemetations Larg boar (mor expensive) N IEE standard Majo suppor b Motorol an smal OEMs Fe system an devices I circui emulator an devlopemen systems Largel replace b VM includin VME P BUS N IEE standard No wel defined N DM o sophisicate interrup structure Limite boar capacity Multipl vendor an device support Mbyt addres limited bi dat pat only n 1 bi o 3 bi data Difficul fo othe tha 808 Severel limite fo ou muli user/processo architecture Difficul UNI port Mos popula bu (now) Magazin support Ove 10 manufacturer (accordin t BYTE)  th board an planne retur tri t updat thei boards I th meantim the c