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The Program

The dictionary organizes core and thus forms a major component of FORTH. However most words do not modify the dictionary - they merely reside there. Fig. 3 is a functional diagram of FORTH. The major blocks besides the dictionary are the scanner and the queue. Notice that although FORTH implements a supervisor, compiler and loader these aspects cannot be localized.

Figure 3.

Components of FORTH.

keyboard, queue, disk, scanner, search, enter, dictionary

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