Think dark jeans with a bright polka-dot top, or contrast a nude shift dress with a tailored spotty jacket.

The buckling spring method, unfortunately, has long been replaced by the 'rubber dome,' where little sticks on the underside of the keys press down on rubber domes laid on a plastic underlay.

Now, consider that some type of communications failure occurs between step 1 and step 2 (indicated by the red dots).