CONTENTS Title Page Copyright Page Preface glossary $allocation-class$ . . . access violation account . . . address access type address space . . . American Standard Code for Information Interchange (ASCII) ancillary control process (ACP) . . . assembly language assigning a channel . . . authentication authorization file . . . bandwidth base operand address . . . bits per inch (bpi) block . . . breakin attempt broadcast addressing . . . cache memory call . . . CF channel . . . closed user group (CUG) cluster . . . command node command parameter . . . computer memory interconnect (CMI) concealed device . . . consistent console . . . control region page table (P1PT) control station . . . crash crash dump . . . data data check . . . DDT debug symbol table . . . designated router detached process . . . device register device unit . . . directory name disconnect abort . . . double floating data downline system load . . . DSSI: DIGITAL Storage Systems Interconnect DST . . . encryption end node . . . ESR Ethernet . . . exception service routine executable image . . . extension extent . . . FDT FDT routine . . . file identifier (FID) file name . . . Files-11 On-Disk Structure Level 1 Files-11 On-Disk Structure Level 2 . . . fork lock fork process . . . function code function decision table (FDT) . . . gold key GROUP . . . high-level language highwater marking . . . image exit image I/O segment . . . indexed addressing mode indexed file organization . . . interrupt message interrupt priority level (IPL) . . . I/O request packet (IRP) I/O rundown . . . job job controller . . . KSP label . . . lexical function librarian . . . linking literal mode . . . locality locate mode . . . logging logging file . . . logical name logical name table . . . manual record unlocking mapping window . . . member unit memory . . . monitor console routine (MCR) mounting a volume . . . multiprocessing system multiprogramming . . . network ancillary control program (NACP) network connect block (NCB) . . . nonprivileged nonrouting node . . . octal number offset . . . operator operator communication manager (OPCOM) . . . P1 P1 through P8 . . . packet switching data network (PSDN) page . . . parallel processing parameter . . . permanent virtual circuit (PVC) per-process address space . . . point-to-point circuit polling . . . privileged procedure . . . process I/O segment process name . . . program counter (PC) program locality . . . proxy login PSECT . . . quadword qualifier . . . reachable node read . . . record length record locking . . . relative volume number remote device . . . rights database rights list . . . satellite node SBI . . . SCS search list . . . selective crash dump semaphore . . . signal sink node . . . source member source program . . . stack frame stack pointer (SP) . . . store through stream . . . supervisor mode supervisor mode stack pointer . . . symbol table symbolic debugger . . . system control block base register (SCBB) system-defined identifier . . . system region system services . . . text buffer TFF . . . transaction manager transaction processing . . . Trojan horse program turnkey account . . . UIC unblocked record . . . user authorization file (UAF) User Environment Test Package (UETP) . . . value return registers variable-length bit field (VBF) . . . VCB vector . . . video terminal virtual address . . . volatile database volume . . . WDCS weak definition . . . write allocate write back . . . XQP