Research and Advances

Optimal program and data locations in computer networks

An optimization procedure for the allocation of program and data files in a computer network is presented. This algorithm takes into account the dependencies between files and programs such as occur in real heterogeneous computer networks. Insights into whether or not to convert programs from one computer to another can also be gained from the model. A search procedure for the file location problem is described, along with an example and a possible application of the model.


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Research and Advances

Spelling correction in systems programs

Several specialized techniques are shown for efficiently incorporating spelling correction algorithms into compilers and operating systems. These include the use of syntax and semantics information, the organization of restricted keyword and symbol tables, and the consideration of a limited class of spelling errors. Sample 360 coding for performing spelling correction is presented. By using systems which perform spelling correction, the number of debugging runs per program has been decreased, saving both programmer and machine time.

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