الفهرس 
MINICOMPUTERS FOR REAL-Tum APPLICATIONOnly 14 pages are availabe for public view
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Abstract
This thesis deals with softwere aspects of on-line computer
control of physicRl process. A miniconputer~basen system for the
control of a nuclear reactor will be considered in great detail.
The main characteristics affecting the use of minis in control
are those pertaining to its real-time capabilities such as
the input/output bus, interrupt system and fast transfers with
secondary storage. The software aspects of the mini such as the
addressing modes, the instruction repertoire and the subroutines
linkage together with the softw8re package of the mini affects
the selection of a certain mini for a processu
Operating systems are as important as the computers because
they supervise their job by time-sharing all the resources of
a system such as the central processor unit, me~ory, interrupt
system and input/output devices. The operating systems increase
the efficiency of the computer system also by the lliultiprogram-
ming cor.cept. ~n operating system would consist of four b?sic
parts= the ScheQ.gler”activates prograCls At appropri’1te times
depending on their prLorlt Le s, the Ev§.g:LE;r_e.Q.!:handles all possible interrupts in the system and assigns to each of them
the appropriate servIng routine, the §.i;o~?.g_~_jI_lloc£.iq_~:keeps