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Graphics Interchange Format  |  1996-05-06  |  27KB  |  483x585  |  8-bit (64 colors)
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OCR: Scanner Application Convert Process Convert Process converts writes cooked data from the scanner-specific to the file descriptor data formats to standard passed by the formats and, if necessary, application performs simple zooming Convert Process Scan Convert Process adds Convert Process gets commands written buffers back raw data buffers and results to the tail of from the head of Free Queue Scan Queue Parent Process Free Scan Queue Queue Scan Process Scan Process gets the empty adds the buffered buffers from the scanned data to the head of Free Queue tail of Scan Queue Scan Process Scan Process issues the device-specific commands to get scan data from the scanner raw | data Scanner