Service bureaus (Was: Tek 4051 firmware listing

Chuck Guzis cclist at
Mon Dec 13 16:58:27 CST 2010

On 13 Dec 2010 at 14:27, Fred Cisin wrote:

> A long time ago, there used to be some people who put slashes through
> the letter 'o', to differentiate it from the numeral '0'.  Are they
> ALL dead now?
> One of MICROS~1's early attempts at OCR on their order forms gave
> examples of how they wanted the letters formed, and included slashing
> the letter 'o'!

I used a coding form where the convention was pre-printed on the 
form.  Not that anyone red the green stuff...

I've always wondered what the Scandanavians do to differentiate 0 
from O from Ø.

Don't some Micros~1 or IBM character sets use a dot in the middle of 
a zero?


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