I/Os is flagged.
I/O's doesn't seem to follow the rules/guidelines I found elsewhere on this site - but seems best...and doesn't get flagged.
Okay, here's my second attempt: If I have a computer program which does 1000 input/output operations per minute...number of blocks of data read from disk, let's say...what's the "proper" way to "pluralize" and shorten that statement?
The program does 1000 I/Os per second.
The program does 1000 I/O's per second.
And, it's obviously cumbersome to write it out, or add the word "operations" (which makes it "clunky", and is not the way technical types speak to each other). We say "I/O's" per hour, or week, or whatever...so how would that get written, such as in a report where it may appear many times?
Interestingly, neither of those is "flagged" this time...explaining what I meant there, when I was typing in the original question on this site, using "I/Os" was "flagged" - highlighted; the spell checker/whatever highlighted it as if it were wrong...but "I/O's" was not "flagged".
Interesting dichotomy there.