this post was submitted on 27 Dec 2023
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I often find myself explaining the same things in real life and online, so I recently started writing technical blog posts.

This one is about why it was a mistake to call 1024 bytes a kilobyte. It's about a 20min read so thank you very much in advance if you find the time to read it.

Feedback is very much welcome. Thank you.

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[โ€“] [email protected] 2 points 1 year ago (1 children)

To me, your attempt at defending it or calling it a retcon is an awkward characterization. Even in your last reply: now you're calling it an approximation. Dividing by 1024 is an approximation? Did computers have trouble dividing by 1000? Did it lead to a benefit of the 640KB/320KB memory split in the conventional memory model? Does it lead to a benefit today?

Somehow, every other computer measurement avoids this binary prefix problem. Some, like you, seem to try to defend it as the more practical choice compared to the "standard" choice every other unit uses (e.g: 1.536 Mbps T1 or "54" Mbps 802.11g).

The confusion this continues to cause does waste quite a bit of time and money today. Vendors continue to show both units on the same specs sheets (open up a page to buy a computer/server). News still reports differences as bloat. Customers still complain to customer support, which goes up to management, and down to project management and development. It'd be one thing if this didn't waste time or cause confusion, but we're still doing it today. It's long past time to move on.

The standard for "kilo" was 1000 centuries before computer science existed. Things that need binary units have an option to use, but its probably not needed: even in computer science. Trying to call kilo/kibi a retcon just seems to be trying to defend the use of the 1024 usage today: despite the fact that nearly nothing else (even in computers) uses the binary prefixes.

[โ€“] [email protected] 2 points 1 year ago

I don't think it's more practical. I think it's what emerged from researchers trying to refer to concepts. I prefer the clarified prefixes.