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If the volume is at 50% then does that mean that 50% of the voltage is going to the headphones and the other 50% is being wasted as heat in the resistors (or potentiometer) that reduce the voltage, making it use the same amount of electricity as if the volume was at 100%? -- Codell ( talk) 01:35, 11 August 2011 (UTC)
decltype
(
talk) 07:17, 11 August 2011 (UTC)Someone on a KurzweilAI forum said he had a metal detector app once, though he was sure it was a joke app.
I would believe that it was indeed a joke app.
On the other hand, what kinds of tech advances would be required of cellphone tech in order to create a real-working metal-detecting app??? -- 70.179.163.168 ( talk) 05:39, 11 August 2011 (UTC)
Are there any Android devices currently on the market or "comming soon" that have a USB Host facility built in? So far all the devices I have seen (various phones and a Samsung Galaxy Tab) do not have a type A (or Micro-A) USB port and so are limited to only be a peripheral instead of controlling other peripheral devices. Roger ( talk) 08:31, 11 August 2011 (UTC)
I've just bought a no-name "seven inch" Android minitablet that's described as having "Rockchip 2818 1.0Ghz (ARM+DSP+GPU)", 256MB and (?) 4GB of memory (I mean, aside from and Micro-SD card), and Android 2.1. It was new, and cost very little over the interwebs. I wasn't expecting much, but I was expecting a battery life longer than fifteen minutes, which is all I get when doing something innocuous like attempting to view a PDF. ("Attempting", because zoom as I wish, it's too small. I assume that some other software will do the job.) Fifteen minutes is of course so short that the device is worthless. I'm now drafting a chilly message to the dealer, but I'm wondering what to say. It's obvious to me that anything like this should be usable for four hours, and that it's just this example that's a lemon, and I should ask for a replacement -- but I'm an Android ignoramus and maybe it's common knowledge that the charge capacity of batteries designed for these particular devices halves every three months after manufacture; maybe I should ask for a different model. What battery life can one reasonably demand of a new (but slightly old-stock) cheapo cheapo tablet? (The minuscule user's guide for this one talks of a charging time of five hours [ha ha] but says nothing about how much use you can then get out of it.) -- Hoary ( talk) 09:19, 11 August 2011 (UTC)
I cannot create an Yahoo account, it said I answered the CAPTCHA incorrectly but it was correct. Windows 7 with Internet Explorer 9, help. Marthelati ( talk) 13:16, 11 August 2011 (UTC)
Indefinitely many times. Marthelati ( talk) 13:24, 11 August 2011 (UTC)
What I already know:
But I don't know:
The Oracle website does not have any explaination at all (or because I haven't found it yet). -- Livy the pixie ( talk) 14:16, 11 August 2011 (UTC)
According to this and this website, the issue i currently am having with a wireless network keyring can be resolved by deleting a default keyring file in a certain location. However, this file does not exist on my system.
From terminal:
home@home-HP-Pavilion-dv9000-EZ458UA-ABA:~/.gnome2/keyrings$ ls login.keyring user.keystore.AZNLQV user.keystore.Q84TQV user.keystore user.keystore.HD0RQV user.keystore.WU8TQV
home@home-HP-Pavilion-dv9000-EZ458UA-ABA:~/.gnome2/keyrings$ ls -a . login.keyring user.keystore.AZNLQV user.keystore.Q84TQV .. user.keystore user.keystore.HD0RQV user.keystore.WU8TQV
My guess is maybe i have a different version of the software? though that is rather more a stab in the dark than an educated guess. Should i delete one of these files which may operate the same as the intended default.keyring?
216.173.144.164 ( talk) 14:48, 11 August 2011 (UTC)
I believe I should move on from Dell with my next laptop/ swivel tablet because some of their warranty deals are rip-offs.
I was promised year-long software warranty tech support for $239, then I learned that $239 covers just 4 incidents, then I was offered $110 for another 3.
I want warranty packages that are good for a period of time, period. Not for a period of time in a number of incidents.
So what competing PC manufacturer will offer better warranty packages (to include software warranties, not just hardware) than Dell?
(Also, this manufacturer has to allow me to choose my own parts/components like how Dell & Apple does when I shop for a new system on their websites. That would help me a lot. Thanks.) -- 70.179.163.168 ( talk) 18:01, 11 August 2011 (UTC)
I could have just changed computers at this library, but when I asked someone for help she asked if there was a mouse, and when I moved my mouse across the top of the screen the toolbar magically appeared. Then it disappeared. I should add that on Wikipedia, the sign-in link disappears if the toolbar is there, as do "My contributions".
Most of these computers are Internet Explorer, and another one said it was Windows XP. I don't know what this one is. Vchimpanzee · talk · contributions · 18:45, 11 August 2011 (UTC)
In the office I work we have 4 PC's connected to a networked printer all through a server, but every now and again one of the PC's won't print and what we have to do is go into Devices and Printers and un-install the printer and then re install it. Has anyone any ideas why this is happening as it has happened on the 3 PC's that are connected wirelessly but not the one that is directly connected to the printer by a cable, thanks. Mo ainm ~Talk 21:37, 11 August 2011 (UTC)
I use VLC on Ubuntu. You can easily add video effects and adjustments to videos (like changing the contrast, or rotating the vid) during playback but can you make those changes permanent? The Convert/Save menu doesn't seem to be able to do that, as far as I can tell (it's not the easiest thing in the world to use). TresÁrboles ( talk) 21:47, 11 August 2011 (UTC)
ffmpeg
or
mencoder
, but you might prefer using a GUI app, such as… (in no particular order)
LiVES,
CinePaint,
Avidemux,
Kino,
CineFX,
Kdenlive,
PiTiVi,
Cinelerra. ¦
Reisio (
talk) 11:02, 12 August 2011 (UTC)Just some fact-checking. (that's from xkcd.com) Does the first password has 2^28 of entropy and the second 2^44? Is the second password harder for a computer to crack? Quest09 ( talk) 23:46, 11 August 2011 (UTC)
Computing desk | ||
---|---|---|
< August 10 | << Jul | August | Sep >> | August 12 > |
Welcome to the Wikipedia Computing Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
If the volume is at 50% then does that mean that 50% of the voltage is going to the headphones and the other 50% is being wasted as heat in the resistors (or potentiometer) that reduce the voltage, making it use the same amount of electricity as if the volume was at 100%? -- Codell ( talk) 01:35, 11 August 2011 (UTC)
decltype
(
talk) 07:17, 11 August 2011 (UTC)Someone on a KurzweilAI forum said he had a metal detector app once, though he was sure it was a joke app.
I would believe that it was indeed a joke app.
On the other hand, what kinds of tech advances would be required of cellphone tech in order to create a real-working metal-detecting app??? -- 70.179.163.168 ( talk) 05:39, 11 August 2011 (UTC)
Are there any Android devices currently on the market or "comming soon" that have a USB Host facility built in? So far all the devices I have seen (various phones and a Samsung Galaxy Tab) do not have a type A (or Micro-A) USB port and so are limited to only be a peripheral instead of controlling other peripheral devices. Roger ( talk) 08:31, 11 August 2011 (UTC)
I've just bought a no-name "seven inch" Android minitablet that's described as having "Rockchip 2818 1.0Ghz (ARM+DSP+GPU)", 256MB and (?) 4GB of memory (I mean, aside from and Micro-SD card), and Android 2.1. It was new, and cost very little over the interwebs. I wasn't expecting much, but I was expecting a battery life longer than fifteen minutes, which is all I get when doing something innocuous like attempting to view a PDF. ("Attempting", because zoom as I wish, it's too small. I assume that some other software will do the job.) Fifteen minutes is of course so short that the device is worthless. I'm now drafting a chilly message to the dealer, but I'm wondering what to say. It's obvious to me that anything like this should be usable for four hours, and that it's just this example that's a lemon, and I should ask for a replacement -- but I'm an Android ignoramus and maybe it's common knowledge that the charge capacity of batteries designed for these particular devices halves every three months after manufacture; maybe I should ask for a different model. What battery life can one reasonably demand of a new (but slightly old-stock) cheapo cheapo tablet? (The minuscule user's guide for this one talks of a charging time of five hours [ha ha] but says nothing about how much use you can then get out of it.) -- Hoary ( talk) 09:19, 11 August 2011 (UTC)
I cannot create an Yahoo account, it said I answered the CAPTCHA incorrectly but it was correct. Windows 7 with Internet Explorer 9, help. Marthelati ( talk) 13:16, 11 August 2011 (UTC)
Indefinitely many times. Marthelati ( talk) 13:24, 11 August 2011 (UTC)
What I already know:
But I don't know:
The Oracle website does not have any explaination at all (or because I haven't found it yet). -- Livy the pixie ( talk) 14:16, 11 August 2011 (UTC)
According to this and this website, the issue i currently am having with a wireless network keyring can be resolved by deleting a default keyring file in a certain location. However, this file does not exist on my system.
From terminal:
home@home-HP-Pavilion-dv9000-EZ458UA-ABA:~/.gnome2/keyrings$ ls login.keyring user.keystore.AZNLQV user.keystore.Q84TQV user.keystore user.keystore.HD0RQV user.keystore.WU8TQV
home@home-HP-Pavilion-dv9000-EZ458UA-ABA:~/.gnome2/keyrings$ ls -a . login.keyring user.keystore.AZNLQV user.keystore.Q84TQV .. user.keystore user.keystore.HD0RQV user.keystore.WU8TQV
My guess is maybe i have a different version of the software? though that is rather more a stab in the dark than an educated guess. Should i delete one of these files which may operate the same as the intended default.keyring?
216.173.144.164 ( talk) 14:48, 11 August 2011 (UTC)
I believe I should move on from Dell with my next laptop/ swivel tablet because some of their warranty deals are rip-offs.
I was promised year-long software warranty tech support for $239, then I learned that $239 covers just 4 incidents, then I was offered $110 for another 3.
I want warranty packages that are good for a period of time, period. Not for a period of time in a number of incidents.
So what competing PC manufacturer will offer better warranty packages (to include software warranties, not just hardware) than Dell?
(Also, this manufacturer has to allow me to choose my own parts/components like how Dell & Apple does when I shop for a new system on their websites. That would help me a lot. Thanks.) -- 70.179.163.168 ( talk) 18:01, 11 August 2011 (UTC)
I could have just changed computers at this library, but when I asked someone for help she asked if there was a mouse, and when I moved my mouse across the top of the screen the toolbar magically appeared. Then it disappeared. I should add that on Wikipedia, the sign-in link disappears if the toolbar is there, as do "My contributions".
Most of these computers are Internet Explorer, and another one said it was Windows XP. I don't know what this one is. Vchimpanzee · talk · contributions · 18:45, 11 August 2011 (UTC)
In the office I work we have 4 PC's connected to a networked printer all through a server, but every now and again one of the PC's won't print and what we have to do is go into Devices and Printers and un-install the printer and then re install it. Has anyone any ideas why this is happening as it has happened on the 3 PC's that are connected wirelessly but not the one that is directly connected to the printer by a cable, thanks. Mo ainm ~Talk 21:37, 11 August 2011 (UTC)
I use VLC on Ubuntu. You can easily add video effects and adjustments to videos (like changing the contrast, or rotating the vid) during playback but can you make those changes permanent? The Convert/Save menu doesn't seem to be able to do that, as far as I can tell (it's not the easiest thing in the world to use). TresÁrboles ( talk) 21:47, 11 August 2011 (UTC)
ffmpeg
or
mencoder
, but you might prefer using a GUI app, such as… (in no particular order)
LiVES,
CinePaint,
Avidemux,
Kino,
CineFX,
Kdenlive,
PiTiVi,
Cinelerra. ¦
Reisio (
talk) 11:02, 12 August 2011 (UTC)Just some fact-checking. (that's from xkcd.com) Does the first password has 2^28 of entropy and the second 2^44? Is the second password harder for a computer to crack? Quest09 ( talk) 23:46, 11 August 2011 (UTC)