A new PowerPoint for Macintosh, adding color 35mm slides, appeared by mid-1988,  and again won good reviews.  The same PowerPoint product re-developed for Windows was shipped two years later, in mid-1990, at the same time as Windows .  Much of the color technology was the fruit of a joint development partnership with Genigraphics , at that time the dominant presentation services company. 
Writing Across the Curriculum – 6 Traits of Writing
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The 5W's & H - Who, What,
When, Where, Why & How