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Role Models for Screen Design
Clearing Functional Areas
6 other sections not shown
arrow keys ASCII basic bit-mapped systems CAI programs CAI systems callable capabilities Chapter character attributes character bit map character cell level Character Cell System color component computer screens computer/video medium computer/video system Control Data Corporation courseware deﬁne developmental tests difﬁcult discussed display logic display text dot matrix dot pattern erase from cursor erase mode error messages example ﬁgure ﬁll ﬁlling ﬁnd ﬁrst ﬂashing function keys functional area graphics character set graphics code Graphics editors graphics entities graphics tablet horizontal implement instructional italicization justiﬁcation keywords large number layouts lesson logic letter rotation light pen lowercase margin module move the cursor needed nique orientation information pixels PLATO system primitive printed raster scan readability replace mode RETURN key reverse video screen displays scrolling region shown in Figure staircasing student options symbol television text block text display text editors TICCIT usually vertical video display writing line rotation writing modes