This will explain it. Mike
Mike, They’re called Hollerith codes. Way back when, a computer’s “alphabet” was limited to the digits, the upper and lower cases of the alphabet, and standard punctuation marks. There are 256 possible values for an eight-bit binary number, but some of those were “reserved” for non-printing characters that controlled the monitors / printers. Try it yourself: hold down the ALT key and type 0065 on the number pad (you get a capital A). You can figure out what all the keyboard characters are by this method. Needless to say, many more characters are available today, including several varieties of quotation marks that tilt left and right. TTML doesn’t support them all, so I often see gibberish like Harper’s and have to edit them out. Something to remember on your new list, since Harper’s is a location on the C&O canal.
