Look closely above. Is that a numeric zero, or an alphabetic O?
O00h-ooo0Oh??? How do we tell the difference?
Great question... as I'm sure you've all been caught in the "is that a zero or an O" game in submitting codes, passwords, etc.
Every self-respecting-code-specific-computer-geek-engineer ALWAYS puts a slash through a numeric zero to tell the difference...kind of like Europeans putting a slash through sevens to distinguish them from ones.
Sonoma County History Lesson: About 20-25 years ago, when Highway 12 was first going through major growing pains, one of the first planned intersection revamps just west of downtown was slated for major construction. The engineer did marked either what could be interpreted as a 7 or a 1 on some blue print construction plans (I'm going back to pre-computer everything). The construction crew interpreted incorrectly. Mess.
Moral of the story... always draw a slash through your sevens and through your zeros. Expensive, time consuming, mishaps happen.
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