The keyboard feel on the HP15C
was very positive and easy to press, as are most HP calculators.
Many calculators have horrible keyboards. The keys are soft and have no tactile
feel. As a result, to confirm that the key press actually took, you have
to look at the screen to be sure. This obviously slows you down considerably
when performing calculations. Fortunately the designers at HP knew that a positive
keyboard feel was important, and designed most of their calculators to have a near
perfect feel, one that you have to use to fully appreciate.
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the Petition