Acronyms

Acronyms used in the description of Norsk Data computers. This page lists some of the forgotten acronyms that makes it easier to read ND-documentation.

BRF

BRF, Binary Relocatable Format (main article: Binary Relocatable Format), compiled NORD-10/ND-100 program code in a form that can be loaded anywhere in memory. See NRL or BRF Linker.

DMA

DMA, Direct Memory Access, allows hardware subsystems to access main memory independent of the CPU.

HDLC

HDLC, High-Level Data Link Control. Asynchronous serial OSI level 2 protocol supported by several Norsk Data I/O cards.

NRF

NRF, ND Relocatable Format (main article: ND Relocatable Format), compiled ND-500(0) program code in a form that can be loaded anywhere in memory. See ND Linker.

MPM

MPM, Multi Port Memory, a Norsk Data memory subsystem (various revisions) designed for multi-CPU systems like the NORD-50, ND-500, ND-5000.

PIOC

PIOC, Programmable Input Output Controller, a term used about several Norsk Data I/O cards, e.g. 3108.

PIT

PIT, hardware Page Index Table. See Memory Management System.

SMD

SMD, Storage Module Driver, one of the types of disks used by ND computers.

TPS

Transaction Processing System, a transaction system handling transactions between I/O devices and programs. See TPS.

TRUE

TRransaction User Environment, a transaction monitor, network control and recovery system for databases. See TRUE.