4 ms·

That question is nonsensical. A keyboard is not a computer; it's CONNECTED to a computer. This device IS a computer, and you would typically connect a keyboard

That question is nonsensical. A keyboard is not a computer; it's CONNECTED to a computer. This device IS a computer, and you would typically connect a keyboard to IT. "OTG" is inherently meaningless. Kind of like a "red flag warning" (for any CA readers).

stonogo 3y ago
"Inherently meaningless" is fine for a name. Anyway this one has an externally-applied meaning in the form of an actual specification, which defines OTG explicitly: On-The-Go: An OTG product is a portable device that uses a single Micro-AB receptacle (and no other USB receptacles) to operate at times as a USB Targeted Host and at times as a USB peripheral. OTG devices shall always operate as a standard peripheral when connected to a standard USB host. You can get the rest of the details from the specification itself: https://www.usb.org/document-library/go-and-embedded-host-supplement-usb-revision-30-specification-revision-11 https://www.usb.org/document-library/go-and-embedded-host-su...
- ShadowBanThis01 3y ago
  Thanks for the reference. As to "meaningless is fine..." no. And doubly no to the abbreviation of a meaningless name. "Dual-mode" or "dual-role" USB would make at least some sense and convey some information.
IshKebab 3y ago
Nope! a) A keyboard has a little computer in it too. Fundamentally they're both computers. It's not the "computerness" that matters, it's "is this normally a peripheral?" b) This is normally a peripheral - you connect it to a host computer to program it.
- ShadowBanThis01 3y ago
  Nope! We all know what the implication of the original statement was.
dragontamer 3y ago
> A keyboard is not a computer You underestimate the complexity of modern protocols and the amount of computational power in everyday devices. All USB devices have more compute power than the entirety of the Apollo Moon Lander program. And we use that compute power to format USB checksums, USB packets, and other such protocol details. In practice, a keyboard today has the compute potential exceeding that of supercomputers of decades past. We just don't think about it very much. --------- A modern mouse is more obvious, in that it uses convolution kernels over the scanned 2d infrared picture to figure out if the image moved right, left, up or down about 100x per second and reports the results to the host. That's how optical mouse works. Lots and lots of matrix multiplications and 2d digital signal processing...
- ShadowBanThis01 3y ago
  Aaand this is the pedantry I expected. Didn't even bother trying to head it off. Why deny this stack of commenters their jollies?
johnwalkr 3y ago
This device can also act as a device when you connect it to another computer. Maybe "OTG" is not the best name, but rightly or wrongly, that is the accepted name for this feature.

stonogo 3y ago

"Inherently meaningless" is fine for a name. Anyway this one has an externally-applied meaning in the form of an actual specification, which defines OTG explicitly: On-The-Go: An OTG product is a portable device that uses a single Micro-AB receptacle (and no other USB receptacles) to operate at times as a USB Targeted Host and at times as a USB peripheral. OTG devices shall always operate as a standard peripheral when connected to a standard USB host. You can get the rest of the details from the specification itself: https://www.usb.org/document-library/go-and-embedded-host-supplement-usb-revision-30-specification-revision-11 https://www.usb.org/document-library/go-and-embedded-host-su...

ShadowBanThis01 3y ago
Thanks for the reference. As to "meaningless is fine..." no. And doubly no to the abbreviation of a meaningless name. "Dual-mode" or "dual-role" USB would make at least some sense and convey some information.

IshKebab 3y ago

Nope! a) A keyboard has a little computer in it too. Fundamentally they're both computers. It's not the "computerness" that matters, it's "is this normally a peripheral?" b) This is normally a peripheral - you connect it to a host computer to program it.

ShadowBanThis01 3y ago
Nope! We all know what the implication of the original statement was.

dragontamer 3y ago

> A keyboard is not a computer You underestimate the complexity of modern protocols and the amount of computational power in everyday devices. All USB devices have more compute power than the entirety of the Apollo Moon Lander program. And we use that compute power to format USB checksums, USB packets, and other such protocol details. In practice, a keyboard today has the compute potential exceeding that of supercomputers of decades past. We just don't think about it very much. --------- A modern mouse is more obvious, in that it uses convolution kernels over the scanned 2d infrared picture to figure out if the image moved right, left, up or down about 100x per second and reports the results to the host. That's how optical mouse works. Lots and lots of matrix multiplications and 2d digital signal processing...

ShadowBanThis01 3y ago
Aaand this is the pedantry I expected. Didn't even bother trying to head it off. Why deny this stack of commenters their jollies?

johnwalkr 3y ago

This device can also act as a device when you connect it to another computer. Maybe "OTG" is not the best name, but rightly or wrongly, that is the accepted name for this feature.