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This paper presents an overview of the architecture of the SPERRY UNIVAC® 1100 Series systems. The principal topics are instruction and data formats, main storage and addressing, process management, and I/O.
The search for satisfactory definitions of the APL floor and ceiling functions has been underway for some time [I, 2, 3]. The APL floor differs from the mathematical ("exact") floor in that it treats values that are "close enough" to integers as if they were integers. The difficulty arises in attempting to define what "close enough '~ means. The most… (More)
Although workspace dumps are a convenient means of exchanging APL packages between installations using the same imple/~entation0 the internal differences of the various implementations make them impossible to use otherwise~ Since the only thing that is common ~nong all ~i~plementations is the source lan~lage~ any general exchange method must involve… (More)
The file subsystem we have provided for APL/360 entails very few new concepts or new rules, makin g the file subsystem well suited to simple personal-file use. Moreover, like other APL functions the fil e operations and file organization are "primitive", in that they form a set of tools for building a wide variet y of shared-file applications .
The computing community is now concerned with the cost in time and money consumed by the debugging process. In spite of advances, such as proving program correctness, use of higher level languages and new methods for structuring programs, the problem remains. The panelists will consider many phases of the debugging activity as it exists today, giving their… (More)