How many WPM would equal to 3GB/s?

[Disparia]

I don't think it would take many keyboards to overload the interrupts of the OS. Certainly much less than required to have humans generate 3 GB/s by pounding on a keyboard.

Not to mention their is a limit to the throughput iirc of a usb hub and not to mention their is a finite number of usb devices you can have hooked to a system hub or no.

Good stuff. We'll probably need to work on a cluster to handle the number of keystrokes and their ordering once I or someone else researches the theoretical maximum of interrupt handling and USB devices per system.


Bonus Info:

The fastest typing speed on an alphanumeric keyboard, 216 words in one minute, was achieved by Stella Pajunas in 1946 on an IBM electric. As of 2005, writer Barbara Blackburn was the fastest alphanumerical English language typist in the world, according to The Guinness Book of World Records. Using the Dvorak Simplified Keyboard, she maintained 150 wpm for 50 minutes, and 170 wpm for shorter periods. Her top speed was 212 wpm.

 

[Toothless]

Is there really any point to this question? It seems kind of childish and nonsensical to me.

It's just something fun to think about and something new.

 

[Solaris17]

Well the maximum including hubs is 127 @ 5v with a max avg draw of .9a

with that math assuming we can fid a way around the limit we are looking at 127usb standard keyboard drawing 126 watts. (too be safe)

 

[Toothless]

Well the maximum including hubs is 127 @ 5v with a max avg draw of .9a

with that math assuming we can fid a way around the limit we are looking at 127usb standard keyboard drawing 126 watts. (too be safe)

So basically the same TDP of a FX-8350.

 

[Disparia]

Might need to switch to a specialized real-time OS so that that we can maximize the usefulness of each computer in our cluster.

(from Integrity RTOS)

 

[Aquinus]

Well the maximum including hubs is 127 @ 5v with a max avg draw of .9a

with that math assuming we can fid a way around the limit we are looking at 127usb standard keyboard drawing 126 watts. (too be safe)

Not that I'm endorsing this misguided discussion, but USB keyboards rarely eat up a full USB port worth of power.

Either way, your bottleneck is still the rate at which MS Word saves files as XML (the underlying format of .docx) can not simply be appended to. So even if you did connect many keyboards up, It wouldn't take more than 10 pages or so before each keystroke would take a sizable amount of time to allow MS Word to write the entire document.

The simple fact is that the rate at which MS Word saves will slow down as the size of the document increases.

Solution: Keep making the document bigger.

Edit: With respect to USB, I think there is a limit of 127 devices per hub as well.

 

[FordGT90Concept]

Nevermind the fact that USB2 (keyboard) only has 480 Mb/s of bandwidth, having just two people typing on keyboards connected to the same computer, the output would not qualify as producing legible "words." There would have to be special software on a special OS that can listen to each keyboard specifically (instead of combining all inputs) and keep the inputs separate. Add that to what Aquinus pointed out and I think the only way one could accomplish this feat is via distributed computing. You''d need people all over the world typing in Microsoft Word at once and in the final second, save it and submit it to a database that correlates data from all users. If you had enough users and that database would need 4+ GB/s internet access, it may be possible to generate 3 GB/s in throughput.