/a> <a href="img5.html">Graphics</a></center><br>
<h1 style="direction:ltr;"><font color="#000080">It is 1963. What is he doing?</font></h1>
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<h3>Notes:</h3>
<p style="direction:ltr;">Ivan's objective was simply to use a computer to help a mechanical engineer with a design drawing.</p>
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<p style="direction:ltr;">Some software was so hard to use that engineers were more effective using paper. To give SketchPad an edge over paper, Ivan let the user declare constraints s