Random Technology Questions

[Davve95]

Is low current (like for batteries 9v, AA etc etc) named something special? I wanna learn it and didn't find any good tutorials.

 

[K^2]

20 hours ago, JaeDan 101 said:

How about this:

 

If my TV runs my PS3 on 480i and the game that I'm playing is displayed on 1080p, will the image will be not clear?

I'm asking this because my PS3 displays on 480i and my GTA 5 runs on 720p

 

Last question:

Does the closest resolutions to 480i (360p, 480p, 640p) will make the image clearer if my PS3 runs on 480i resolution?

I'm sorry if you don't get it

You'll get the best image if the input either matches the number of lines in the image or is a multiple of it. So you will get best picture with 480p, 960p, or 1440p. If none of these are available, your next best option is to go with higher resolution. 1080p should still be about as good of a picture as that screen can manage. 720p and 640p might look a little worse.

 

But if your screen is 480i, the best picture you'll get out of it is still 480i quality, so don't expect too much. The above is just getting you the most you can from what you have.

 

3 hours ago, Davve95 said:

Is low current (like for batteries 9v, AA etc etc) named something special? I wanna learn it and didn't find any good tutorials.

Not really. If you are interested in learning about how battery itself works, the relevant search term is galvanic cell. If you are interested more in how the current flows, you should start with simple circuit. For more advanced topics on current and voltage in circuits, see Ohm's Law, Kirchhoff's Laws, and how it all works in series and parallel circuits. Finally, once you have good grasp on these, another good topic to look into is impedance. That is a more advanced topic, but if you understand impedance and all of the previous topics, you can basically solve any analogue circuit. Note that I've given links to Wikipedia where available, but you can also search for more information on these topics on google. There are also a lot of lecture/lessons on YouTube, but I can't vouch for quality on any specific ones. Though, a channel called Physics Girl has been doing a Physics 101 review. Their content is usually good and most recent posted video is precisely on current and circuits. If you're looking for basic intro, this might work for you.

[Max Payne]

Is this “looks worse if doesn’t match the console’s resolution” a thing for monitors too if someone were to use one instead?
 

I have an old monitor that lets me know about the change of resolution if i play around with it in the settings of Xbox 360, don’t know if TVs do this too. Don’t know if this adds anything either...

Edited February 19, 2021 by Payne

[jaljax]

Anybody here have a Elgato HD60 S?

Been dealing with a issue on my computer with it for almost two months now... 

 

Downloaded the software, plugged the Capture device into a 3.0 port , but keeps saying the device needs to be connected to a USB 3.0 port .

 

very frustrating issue if you ask me & would want to know if anybody has this capture card , has dealt with the same issue in the past ,& is willing to help me out with this issue .

[K^2]

21 hours ago, Payne said:

Is this “looks worse if doesn’t match the console’s resolution” a thing for monitors too if someone were to use one instead?

Think of it this way. If I ask you to paint a flag of Poland with exactly 3 stripes, you'll probably do a little better than if I asked you to paint a German flag with exactly two stripes, but in both cases, the final result will have only a passing resemblance.

 

Unless the number of lines in the input signal is a multiple of physical lines on your display, some of the physical lines lighting up on your display will have to blur between two adjacent lines in the input signal, and you'll never get a picture as sharp as your display is capable of this way. Yes, the display will switch resolutions, but that's just an attempt to accommodate the signal. The position of physical lines doesn't change.

 

Now, the above does assume a modern TV with some variant of LCD tech. Majority of OLED displays would be in the same bucket, though, I have seen some odd matrices for these. The older CRT TVs and displays, however, pretty much always had a more of a honeycomb arrangement of the "pixels". This is why these tended to be a bit more blurry even compared to an LCD or plasma display with the same resolution. Fact that they had to deal with analog signal, either directly or converted, didn't help much either.

[sivispacem]

7 hours ago, jaljax said:

Anybody here have a Elgato HD60 S?

Been dealing with a issue on my computer with it for almost two months now... 

 

Downloaded the software, plugged the Capture device into a 3.0 port , but keeps saying the device needs to be connected to a USB 3.0 port .

 

very frustrating issue if you ask me & would want to know if anybody has this capture card , has dealt with the same issue in the past ,& is willing to help me out with this issue .

Are you sure that the port you're plugging it into is actually USB 3.0? As in, it's plugged into a 3.0 header on the motherboard, or isn't set to a legacy mode or similar in the BIOS?

[jaljax]

15 minutes ago, sivispacem said:

Are you sure that the port you're plugging it into is actually USB 3.0? As in, it's plugged into a 3.0 header on the motherboard, or isn't set to a legacy mode or similar in the BIOS?

I've been plugging it into the 3.0 port , have even tried on another computer as well

[sivispacem]

39 minutes ago, jaljax said:

I've been plugging it into the 3.0 port , have even tried on another computer as well

You could try reinstalling or updating your chipset drivers. Failing that, a return is probably in order

[Davve95]

On 2/18/2021 at 11:59 PM, K^2 said:

Not really. If you are interested in learning about how battery itself works, the relevant search term is galvanic cell. If you are interested more in how the current flows, you should start with simple circuit. For more advanced topics on current and voltage in circuits, see Ohm's Law, Kirchhoff's Laws, and how it all works in series and parallel circuits. Finally, once you have good grasp on these, another good topic to look into is impedance. That is a more advanced topic, but if you understand impedance and all of the previous topics, you can basically solve any analogue circuit. Note that I've given links to Wikipedia where available, but you can also search for more information on these topics on google. There are also a lot of lecture/lessons on YouTube, but I can't vouch for quality on any specific ones. Though, a channel called Physics Girl has been doing a Physics 101 review. Their content is usually good and most recent posted video is precisely on current and circuits. If you're looking for basic intro, this might work for you.

Sorry, I was a bit unclear in my previous post. I meant that I wanna learn electronics but only with the power of batteries such as the 9V and AA and so on etc. 

 

And connect wires, switches, solar power etc etc and of course more advanced stuff. 

And also I wanna learn about resistors. 

 

So aren't there a name for electronics that aren't so powerful? Like just with batteries like 9v etc?

So I can search tutorials without getting up

tutorials about irrelevant stuff such as house eletricity and power outlet eletricity. 

I also gotta mention that I'm not going to start with breadboards as for now on. 

Kinda hard to explain. But maybe you get it. 

Edited February 21, 2021 by Davve95

[K^2]

3 hours ago, Davve95 said:

So aren't there a name for electronics that aren't so powerful? Like just with batteries like 9v etc?

Nothing specific that I can think of. Though, there is direct current (DC) vs alternating current (AC). And while you can have low power AC circuits for things like radio and tone generators, most of the stuff you'd be powering from a battery is DC circuits. And outside of automotive or factory settings, there aren't a lot of uses for high power DC circuits, so if you search for DC stuff, you'll probably be finding mostly things you are interested in.

 

3 hours ago, Davve95 said:

I also gotta mention that I'm not going to start with breadboards as for now on. 

Any specific reason? They are a good way to learn circuits. Or are you just saying that you'll want to stick to theory? In which case, I would still recommend trying some of these things out in simulation. There are tools out there for setting up circuits, including some that are entirely on-line. Something like CircuitLab.

 

But yeah, topics I've linked, such as Ohm's Law and Kirchhoff's Laws are a good start on all of that.

[JaeDan 101]

What is the difference of 1080i and 1080p resolution?

[K^2]

On 2/22/2021 at 4:22 PM, JaeDan 101 said:

What is the difference of 1080i and 1080p resolution?

i stands for Interlaced. In 1080p, each of the 1080 lines on the screen are drawn every single frame. In 1080i, only every other line is drawn during a frame, with the rest drawn on the next frame.

 

In theory, 1080i lets you have the same sharp image as 1080p, but needing to send only half of data. It also reduces load on the graphics processor during rendering. This actually holds if things on the screen aren't moving too fast. However, if there are fast moving objects on the screen, you can end up with some ghosting. This is less noticeable on older TVs, especially, ones with CRT displays, which is why this was a common technique. In fact, back in the days of broadcast television, all signal was interlaced in just such a way, and it's kind of the reason the 480i standard exists, as it is as close as digital signal can get to NTSC.

 

Because the artifacts are more apparent on modern TVs, the interlaced formats are becoming less and less common.

[OREOBOREALIS]

--

Edited March 20, 2021 by Mktz1

[JaeDan 101]

On 2/26/2021 at 9:53 PM, K^2 said:

if there are fast moving objects on the screen, you can end up with some ghosting

Like this?

 

I got another question, which one is better?: 1366x768 or 1360x768?

Edited February 28, 2021 by JaeDan 101

[sivispacem]

3 hours ago, JaeDan 101 said:

Like this?

 

I got another question, which one is better?: 1366x768 or 1360x768?

 

No, like this:

 

 

As for the question, they're basically identical.

[JaeDan 101]

How do I disable all background programs in the task manager? I'm not even using those stuff and when I tried to end their task, they open again

[K^2]

8 hours ago, JaeDan 101 said:

How do I disable all background programs in the task manager? I'm not even using those stuff and when I tried to end their task, they open again

Some of these might be services. The service manager will re-start any tasks that it expects to be running. If you're on Windows 10, just type in "Services" in the search box next to the start icon. Anything that has "Automatic" in "Startup Type" column will be kept running. You can go into properties of each service and switch it over to manual. Keep in mind, however, that there are quite a few of these that you need for your computer to just function. So don't just go disabling everything you see. But you might find a lot of services for things you don't use there as well, like some tools that might have been pre-installed on your computer, and these are often safe to disable to save some processing and start-up time. If you aren't sure about a particular service, search the internet to see if people recommend disabling it or letting it be.

[JaeDan 101]

7 minutes ago, K^2 said:

that there are quite a few of these that you need for your computer to just function.

All I wanted is to close all adobe stuff running, anyway, thanks for answering, I'll try that later

[JaeDan 101]

14 hours ago, K^2 said:

Some of these might be services. The service manager will re-start any tasks that it expects to be running. If you're on Windows 10, just type in "Services" in the search box next to the start icon. Anything that has "Automatic" in "Startup Type" column will be kept running. You can go into properties of each service and switch it over to manual. Keep in mind, however, that there are quite a few of these that you need for your computer to just function. So don't just go disabling everything you see. But you might find a lot of services for things you don't use there as well, like some tools that might have been pre-installed on your computer, and these are often safe to disable to save some processing and start-up time. If you aren't sure about a particular service, search the internet to see if people recommend disabling it or letting it be.

Does Adobe Acrobat and Adobe Genuine do anything?

I'm scared because I might delete some important files and make my computer broken

Edited March 3, 2021 by JaeDan 101

[K^2]

Adobe Acrobat is for PDF, IIRC. If you aren't making PDF files and use something else for viewing them, like Chrome, you probably don't need it running on the background. Adobe Genuine is most likely a license manager, so you probably need that to use any Adobe products. But I don't know a whole lot about how these work, so you might want to search online.

[JaeDan 101]

Can any of you give me tips on how I can improve my internet connection in my laptop?

[Max Payne]

Have some speakers which look a bit old, and they are huge. It makes a little buzz noise but it may be more noisy if they stay open for a while. Is the first thing actually supposed to happen? Do all speakers make a little noise? If I purchased some new speakers, is it guaranteed that I won’t have this issue?

[K^2]

On 3/7/2021 at 6:04 AM, Payne said:

Have some speakers which look a bit old, and they are huge. It makes a little buzz noise but it may be more noisy if they stay open for a while. Is the first thing actually supposed to happen? Do all speakers make a little noise? If I purchased some new speakers, is it guaranteed that I won’t have this issue?

Do you mean if they are just on? That's most likely bad filtering on the power supply. You can get the 50Hz/60Hz signal from the outlets bleeding into the audio lines, and due to interaction with other systems, you can get higher harmonics out of that as well, resulting in an unpleasant buzz.

 

The cause can be cheap components, bad design, or a malfunction from manufacturing defect or age. In general, some amount of interference is unavoidable, but more expensive speakers and amps tend to have less of it, to the point of being completely imperceptible.

 

You should check to see where the noise is coming from before you get the new speakers, though. How does disconnecting the audio jack affect the buzzing? How about volume? If you get more buzz as you increase the volume and there is no significant change based on whether you have audio plugged in or not, then it's probably the built-in amp, and getting better/newer speakers might help. If unplugging the audio jack makes the buzzing go away, the problem could be with device you have connected or the audio cable.

[Max Payne]

Is there a way to have a fps indicator on IOS?

[Mister Pink]

In a previous workplace for a tech company that has a global map, our trainer recommended a Chrome extension that allows you to search a website by word. It was so convenient. For use-case context, if I needed to find the address of a business on their website, instead of wasting time searching for their address (trust me, many businesses bury their address either on purpose or by bad design), I could just use this Chrome extension to search "address" on the site rather than CTRL+F individual pages. 

 

Anyone know of a similar extension? 

[yoječ]

Isn't that something that can be done with a plain Google search query?

"search query" site:https://website.com

 

[Max Payne]

Do i need an HDR supporting display to be able see the HDR details of a photo/video i shot?

[Mister Pink]

On 5/23/2021 at 5:38 AM, yoječ said:

Isn't that something that can be done with a plain Google search query?

"search query" site:https://website.com

 

True but handy having it as an extension. 

 

I've found one here, actually. 

https://chrome.google.com/webstore/detail/search-the-current-site/jliolpcnkmolaaecncdfeofombdekjcp/related

[kontol_kering]

Hello, i recently lost some contacts in my phone after some maintenance error, does anyone knows how to recover our lost contact after we reset our phone to the factory settings?

[DEALUX]

On 6/9/2021 at 2:04 PM, kontol_kering said:

Hello, i recently lost some contacts in my phone after some maintenance error, does anyone knows how to recover our lost contact after we reset our phone to the factory settings?

Get an Android phone and create a Google account. It will store your contacts for you.