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It will outlive us all(lemmy.world)

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The Picard Maneuver@lemmy.world
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Xenny@lemmy.world
41 points

Yeah but try pressing more than 4 keys at once on the PS2 keyboard and get back to me

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e8d79@discuss.tchncs.de
35 points
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That is a limitation of the keyboard not PS/2. Unlike USB which is limited to 10 simultaneous key presses, PS/2 supports full n-key rollover.

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frezik@midwest.social
48 points

USB is not limited to 10, or 6 as is sometimes stated.

https://www.devever.net/~hl/usbnkro

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e8d79@discuss.tchncs.de
7 points

Interesting I did not know that.

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blarth@thelemmy.club
3 points

This, it’s why I still use the PS2 interface. Full n-key rollover is impossible for me to do without.

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frezik@midwest.social
18 points

USB does not have that limitation.

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TheHarpyEagle@lemmy.world
7 points

Out of curiosity, what is the practical use of full N-key rollover? I can’t think of many things that require me to press more than maybe five keys at a time.

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Xenny@lemmy.world
3 points

Well I never had a fancy gaming keyboard back in the PS2 days lol

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e8d79@discuss.tchncs.de
4 points

How about a fancy IBM keyboard? The Model F from 1981 features n-key rollover. Don’t ask me why they needed it at the time though. It probably wasn’t important as the Model M from a couple of years later dropped that feature.

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intensely_human@lemm.ee
26 points

Dude just switch to vim already

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dashydash@lemmy.world
4 points

Dude, just switch to Webstorm already

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lud@lemm.ee
4 points

Is CS available in vim yet?

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embed_me@programming.dev
6 points

Idk but Doom runs pretty well

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drathvedro@lemm.ee
13 points

Nothing to do with the interface. If your keyboard can only do 4 it means that the manufacturer has cheaped out on diodes and couldn’t even be bothered to stagger the matrix enough to make you not notice.

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dan@upvote.au
11 points

I think you’re confusing USB and PS/2. USB has (or used to have?) a limit on the number of keys you could press, whereas PS/2 supports n-key rollover.

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JackbyDev@programming.dev
2 points

USB supports NKRO as well as the default 6KRO.

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dan@upvote.au
1 point

Historically it didn’t support it though, whereas PS/2 always did.

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AnUnusualRelic@lemmy.world
8 points

Preposterous, I’ve used emacs on a ps2 keyboard without issues.

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morbidcactus@lemmy.ca
4 points

I recall NKRO was the selling point on some of those keyboards, my old steel series mechanical will absolutely let you mash all the keys with a ps2 adapter.

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Anarki_@lemmy.blahaj.zone
2 points
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Ok, but why would you ever? Genuinely curios.

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SkyeStarfall@lemmy.blahaj.zone
8 points

Video games

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Anarki_@lemmy.blahaj.zone
1 point

Never had issues with it, but fair. Different strokes.

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Xenny@lemmy.world
3 points
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Try playing a rhythm game on a most PS2 keyboards 😟

Also with certain button combinations it was less than 4. You could only hold 2 arrow keys down at a time.

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