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| This paper presents a computational architecture that addresses the Grand Challenge problem of system integration 1] for intelligent control software. Robotics research has made many advances in sensory processing, control , and planning, but few eeorts focus on the problem of dynamically integrating the \best available" approaches into a single… (More)
Reminiscences on the early developments leading to large scale electronic computers show that it took much longer than was expected for the first of the more ambitious and fully engineered computers to be completed and prove themselves in practical operation. Comments on the present computer field assess the needs for future development.
The paper discusses the requirements of programmers working in varying environments in relation to software engineering, structured programming, and program verification.
The literature is surveyed beginning with the first paper published in 1951. At that time microprogrammmg was proposed primarily as a means for designing the control umt of an otherwme conventmnal digital computer, although the possible use of a read/write control memory was noted. The survey reveals the way in which interest has successively developed in… (More)
The first main memories to be used on digital computers were constructed using a technology much slower than that used for the logic circuits, and it was taken for granted that there would be a memory gap. Mercury delay line memories spent a lot of their time waiting for the required word to come round and were very slow indeed. CRT (Williams Tube) memories… (More)
This paper contains a description of the Cambridge Model Distributed System (CMDS). CMDS sets out to provide, by means of a number of interconnected mini-and microcomputers, facilities that are similar to those provided by a time-sharing system. A user logs-in in the usual manner but, instead of being given a share of the capacity of a central mainframe, he… (More)
McKee draw attention to the fact that the discrepancy between processor speed and DRAM access time is increasing. Since cache misses cannot be reduced to zero, if this trend continues the time will come when the rate of executing instructions will be determined by the rate at which instructions, not already in the cache, can be supplied by the DRAM. They… (More)
Enough time has now elapsed since the publication of the At,Go~+ 60 report for it to become abundantly clear that, Art(Jot, 60 represented an important step forward in the field of automatic programming. Many features of the system +such as the block structure and the use of conditional expressions-are clearly here to stay and will influence all future… (More)