Assertion: turbo pascal | /r/HasAspect | graphical api
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Source sentences:
text: It also had a graphical API (the Graph unit) which supported multiple external drivers (BGI files - standing for Borland's Graphics Interface) and provided a mechanism to link these drivers with the EXE, but as it was quite slow and caused unpleasant flickering, interchangeable visual pages were used, which caused overfilling the video memory.