DOS/360 and successors: Difference between revisions

DOS/360 alsooffered offeredBasic Telecommunications Access Method ([[BTAM]],) aand dataQueued communicationsTelecommunications facilityAccess whichMethod ([[QTAM]]). BTAM was primitive and hard to use by later standards. However, BTAMbut couldit allowed communicatecommunication with almost any type of terminal, which was a big advantage at a time when there was little standardization of communications protocols. The simplicity of its API also allowed the relatively easy interface of external communications processors, which facilitated DOS/360 machines becoming nodes in the multi-tier networks of large organizations. Conversely, QTAM users didn't need as much knowledge about individual devices because QTAM operated at the logical level using the OPEN/CLOSE/GET/PUT macros.