A microprogrammed implementation of EULER on IBM system/360 model 30
Communications of the ACM
HYDRA: the kernel of a multiprocessor operating system
Communications of the ACM
Programming semantics for multiprogrammed computations
Communications of the ACM
PL/I Reducer and Direct Processor
ACM '69 Proceedings of the 1969 24th national conference
The multics system: an examination of its structure
The multics system: an examination of its structure
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In this paper we propose a new method in which original form of the whole system (described in a design and implementation language called DEAPLAN) is directly implemented as it is without either modification or transformation. In other words a kind of high level language machine is considered in the more throughgoing way. Our hardware apparently has neither CPU nor storage device and only consists of a large number of quantum processing units (QPUs) except channels and peripherals. Therefore, extremely speaking, the main contemporary concepts such as virtual space, reenterability and multiplexing of CPU as well as compiling and linkage editing are all disappeared in our system. The identity of implemented version of the system with the original form seems to give a more fundamental solution to the problem of the rapid growth of operating systems compared with the mere structured programming and so on.