Wikipedia:Reference desk/Archives/Computing/2021 January 14

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January 14

Linux-based cloud retrieval analytics

Does anyone have any experience with this? I’m working on a systematic relay protocol for reciprocal cloud data retrieval, specifically using dynamic processing in a virtual environment. I can access the data, but the problem seems to be related to the encryption sequencing array. Thanks — Preceding unsigned comment added by RayPainis (talk • contribs) 07:38, 14 January 2021 (UTC)

Old AMD poster

[1] via here. Parody of Indiana Jones movie poster, circa 1991. The guy with the bullwhip is then-AMD CEO Jerry Sanders which would give the approximate age of the poster. The panicked-looking guy on his right is competitor Intel's CEO Andy Grove. The glamourous lady below Grove is Jerry Sanders' wife, according to the HN post. Anyone recognize any of the others? I expect they are mostly AMD people from that era. Some of them look familiar to me, but this has never been my area. Thanks. 2601:648:8202:96B0:0:0:0:313A (talk) 16:33, 14 January 2021 (UTC)

I will guess that they pictures correspond to the names at the bottom of the poster. RudolfRed (talk) 16:39, 14 January 2021 (UTC)

How bluetooth headsets have such long battery life ?

I really love technology inside battery of bluettooth headsets, I used it for hours. But still charging left in it. It also have Fast Charge Technology. How bluetooth headsets have such long battery life ? Rizosome (talk) 17:23, 14 January 2021 (UTC)

They don't use much power. 2601:648:8202:96B0:0:0:0:313A (talk) 23:11, 14 January 2021 (UTC)

But how they long last? Rizosome (talk) 10:26, 15 January 2021 (UTC)

It's because they don't use much power. Unlike a loudspeaker, for example, they only have to generate enough sound to travel the few millimetres to your eardrum, which requires very little power.--Shantavira|^{feed me} 11:23, 15 January 2021 (UTC)

Listening to powerful and/or close by radio transmissions can be very power efficient, up to and including no power supply at all. The key is that Bluetooth is short range. A Bluetooth receiver in standby mode is likely to consist of a small antenna, resonator circuitry, and a very low power amplifier. When electromagnetic radiation at the appropriate frequency is detected, a more complex microcontroller is woken up to decode the signal and see if it is intended for that device. Most of the time there is no signal at the Bluetooth frequency, so only passive listening is needed. 85.76.79.55 (talk) 17:15, 15 January 2021 (UTC)

And they use lithium-ion batteries, which pack quite a bit of power in a small package. If you want to amuse yourself, you can estimate a headset's power usage from the battery capacity and time the charge lasts. Battery capacity is often given in the manual or manufacturer's website. --47.152.93.24 (talk) 04:08, 17 January 2021 (UTC)

Html link to a random page in wikipedia

Hi, I'm currently buildingn a small internet page for a school project. I would like to provide some links to a random page in wikipedia using

<a href="http://en.wikipedia.org/wiki/Special:Random article-image" title="Visit a randomly selected article">sample_text</a>.

This line is in an .html file which is actually embedded in the main .html file using an <iframe> Unfortunately it does not work.

I would like to know if there is no use trying or if there is actually a way.

89.66.4.141 (talk) 21:01, 14 January 2021 (UTC)

The correct link is https://en.wikipedia.org/wiki/Special:Random. If you want to use an iframe, try something like this:

<iframe src="https://en.wikipedia.org/wiki/Special:Random" title="Random Wikipedia article"
width="90%" height="500px" style="padding: 5px; border:1px double red;">

— GhostInTheMachine ^{talk to me} 21:48, 14 January 2021 (UTC)