Riddle me this, where did the magic 132 columns come from? I want to say it was fortran77 when extend source was added to let fortran files use 132 columns.
I investigated 132 columns in detail and wrote a blog post about it. It's complicated but essentially, 14 7/8" paper was a standard size going back to the IBM 402 tabulator in 1948, where it was used for 88-column output using a character spacing of 5/32". The IBM 1403 printer (1959) changed to 10 characters per inch, resulting in 132 columns on 14 7/8" paper.