On Sat, August 29, 2015 8:33 pm, Gene Heskett wrote: > On Saturday 29 August 2015 21:24:47 rlhar...@oplink.net wrote: >> Forgive me; my fingers are dyslexic. > So are mine. They don't type what I tell them to lots of the time. > Coulnd't be the accumulated years (nearly 81) could it?
Not necessarily. >From time to time, I have found a sudden, large increase in the number of typographical errors in the documents which I produce. And several times, investigation has revealed that the problem lies in a worn-out keyboard. Back in the 1960's and 1970's, manufacturers such as Honeywell and Cherry made keyswitches with a life rating in the tens of millions or even hundreds of millions of keystrokes. Nowadays, it is becoming difficult to find a keyboard with a rating in the tens of thousands of keystrokes. Many manufacturers today have a poor keyswitch design which utilizes low-quality plastics; they depend upon a lubricant such as wax to keep the plunger working freely. And when the wax wears away, the plunger begins to stick. And when the plunger does not depress freely, the result is a multitude of typographical errors. RLH
