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Distributed Processing Control Executive DPCX 410
Technical Overview P21
7 other sections not shown
29 Million 3278 Display Station 58 Million Bytes 8100 Information System 8809 Magnetic Tape application program attachment feature binary synchronous communication channel I/O channel I/O operations channel pointer characters CHIO COBOL Communication Attachment conﬁguration control vector data link attached data processing deﬁned deﬁnition directly attached loop disk storage Display and Printer DOSF DPCX DPPX FORTRAN dynamic address relocation ﬁeld ﬁxed heads ﬂoating-point registers FORTRAN halfword hardware Heads and Fixed host I/O devices I/O Unit IBM 8100 Information Input/Output installation instructions interface interrupt requests keyboard Keylock Line Printer link attached loop logical address space Loop Adapter Magnetic Tape main storage maximum mode Modem movable and ﬁxed Movable Heads operands Optional principal register Printer Attachment priority level processor address space Processor Storage program product provides PSV/ACV pair register set register storage SDLC speciﬁc Storage and I/O Systems Network Architecture terminal