I am pleased (?) to report that typographical errors long predate computers. At one job, I was producing a report on centralized dictation systems. When it came back for my review, it contained the following, "At Mass General, they have 18-minute rapes." It should have been tapes. At another job, a signal lead on a schematic was labeled "Branch Teat." It should have been "Branch Test." This was hand lettered, so no computer was involved, just a wandering mind. At Digital Equipment Corporation (DEC), a secretary came by weekly to deliver copies of the "DEC Engineering Newsletter" to our cubicles. Minute by minute, laughter emitted from another cubicle as another engineer read of the latest effort at company standards for storage media, "DEC STD 054 The DEC Floppy Dick Standard." We concluded that the company's standardization efforts had gone much too far.
-John M