When comparing MT OCR A Extended vs Operator Mono, the Slant community recommends Operator Mono for most people. In the question“What are the best programming fonts?” Operator Mono is ranked 39th while MT OCR A Extended is ranked 116th. The most important reason people chose Operator Mono is:
Operator can be used to mix the same font for syntax formatting.
Specs
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Pros
Pro Easy to distinguish characters
You can clearly tell the difference between those troublesome characters like apostrophes and quotes. Each character is clearly (there's that word again) different from each other to make machine reading easier and work for humans as well.
Pro Has a script version
Operator can be used to mix the same font for syntax formatting.
Pro Super readable
Long strings can be read in Operator exceedingly easily. The font just flows nicely, with all the benefits of clarity that provides.
Pro Horizontal width not as wide as other fixed width fonts
You can legibly read everything and get more characters per line.
Pro Adorable italics
Cons
Con Relatively expensive
At $179, this font is on the more expensive side.