Wikipedia:Reference desk/Computing

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February 23[edit]

Programming - is/uses/is easier if you know - math[edit]

What of the three possibilities is closer to reality? --Senteni (talk) 00:04, 23 February 2015 (UTC)

Programming is easier if you know math, in the sense that if you've had a lot of trouble with things like equations and algorithms and proofs in math, you'll have a lot of trouble programming. Some programming uses math, but by no means all, and some programming uses no math whatsoever. Programming is not, however, math. --jpgordon::==( o ) 00:26, 23 February 2015 (UTC)
I did various types of programming for about 25 years. The only need for "math" I ever had was an understanding of bases (decimal=base 10, binary=base 2, hexadecimal=base 16), and that was only after I had moved into the more technical side of software dev. Most programming needs no particular math skills at all, although it often helps to have a calculator handy. ―Mandruss  03:17, 23 February 2015 (UTC)
Think it's worth quoting the first paragraph of our Mathematics article:
"Mathematics ... is the study of topics such as quantity (numbers), structure, space, and change. There is a range of views among mathematicians and philosophers as to the exact scope and definition of mathematics."
So, holding that definition (and the fact that mathematicians don't agree on it!) in our heads, let's try to answer your question:
  • Programming is math - in the purest sense of that definition of mathematics, yes. Numbers, structure, space (in terms of data space, configuration space, etc) and change are a lot to do with what programming is. We programmers deal with flow-control, algorithms and data structures - all of which are broadly mathematical in nature. So, I suppose programming is a branch of mathematics - but one that's quite disjoint from the rest of mathematics, and one that not many mathematicians would identify with.
  • Programming uses math - well, if programming is math, then it obviously uses it - but you'd be hard pressed to find anything beyond the very basics of arithmetic, boolean logic and set theory that applies to all branches of programming. But obviously if (like me) you're a graphics programmer, then you'll be using a ton of geometry, topology, trigonometry and matrices. But if you're into image processing, then you'll be interested in statistics and all sorts of other mathematical concepts. There are many results from mathematics that are used in programming...but not all programming uses much more than the very most basic arithmetic and boolean logic. There are programming languages like Prolog that would be perfectly useful without numbers of any kind.
  • Programming is easier if you know math - not exactly. I think it's true that the kinds of people who excel at algorithms and data structures tend to be the kinds of people who do well in mathematics. On the other hand, I've known plenty of decent mathematicians who took up programming and did a horrible job of it. So there are no guarantees! I've spent a lifetime as a well paid programmer without ever needing my patchy recollection of high school calculus...but in the field of graphics, I've needed to trawl through many other areas of mathematics.
SteveBaker (talk) 04:15, 23 February 2015 (UTC)

Display problem in Wikipedia editing window[edit]

I frequently use an HP laptop computer (running Windows Vista) to edit Wikipedia pages. For some reason, the type in editing windows on Wikipedia began appearing in really poor quality. It looks much like the output of a typewriter whose ribbon has been used so much that most of the ink has been used up.

I have tried Chrome, Firefox and Opera. The same low-quality display appears in all three. The only way I can get a decent editing window display is to use Internet Explorer 9 (the latest version supported by Vista).

The problem occurs only in Wikipedia's editing windows. Articles are displayed as clearly as ever, and I have had no problems with pages from other Web sites.

If you have any suggestions, I would appreciate them. Eddie Blick (talk) 03:42, 23 February 2015 (UTC)

Sometimes non-integer magnifications of small text can look like crap. Try changing the zoom level, usually with CTRL + and CTRL -. StuRat (talk) 04:36, 23 February 2015 (UTC)
Another thought is that some older computers could only display 256 colors at top resolution. If the (multi-shaded) text puts it over that limit, many of the shades might just come out white. So, try increasing the color depth (which likely requires lowering the screen resolution). StuRat (talk) 04:43, 23 February 2015 (UTC)
I think any laptop that can run Vista is way too recent to have that problem. Anyway, web browsers on 256-color displays used a fixed palette, not dynamic color allocation, so they couldn't run out of colors. -- BenRG (talk) 05:36, 23 February 2015 (UTC)
Thanks. The last time I observed this problem was on my Windows 98 laptop, but I wasn't sure when they finally cured it. StuRat (talk) 06:43, 23 February 2015 (UTC)
This was probably caused by the Windows update That page has a link to which fixes it. I had the same Windows Vista problem (which also affected articles and other websites to a lesser extent in my case), and the fix worked. Download and install the update from It isn't offered in a normal search for Windows updates. Before Microsoft made the fix, I chose "Sans-serif font" at Special:Preferences#mw-prefsection-editing, "Edit area font style". Many others unistalled kb3013455. PrimeHunter (talk) 04:48, 23 February 2015 (UTC)
Thanks for providing that link. I wondered if a Windows update might have caused the problem, but I didn't know a solution if that should be the case. I'll try the link that you suggested. Eddie Blick (talk) 15:17, 23 February 2015 (UTC)
That took care of the problem. I downloaded the patch from the link you provided, then installed the update. After a restart, the editing windows are back to normal legibility. I appreciate your help! Eddie Blick (talk) 17:21, 23 February 2015 (UTC)

Help with PHP confused with calculation[edit]

Hello, I am a novice at PHP and I needed to find a way to complete this form I wanted to make. The form has multiple questions it asks like the characters name and the race of your character and what kind of stuff you would like to buy. There are 4 form questions that end in a drop down box method and 1 of them asks you your race and the other 3 ask you how much of each item you would like to buy. I wanted to process in php a way to add gold to the specific races. If you picked human you would get no extra gold and if you chose elf you would get 10 extra gold added to your character so then when you submit the form if you had an elf that start with 10 gold and added 10 gold to the amount the starting gold was which was 10 you would get 20 gold for an elf character. Then you could of selected 10 gold worth of one item and 5 worth of another item and 0 worth of another item and then after check out you would have 5 gold left on your character. How can I do this? I also wanted to make it so that if you go over the amount of gold that your character has you will get an error screen telling you that you dont have enough gold. — Preceding unsigned comment added by (talk) 12:28, 23 February 2015 (UTC)

It would be hard to answer this question without actually writing all of the code for you - which would prevent you from learning anything from the exercise. But the fact that you need to ask it suggests that you need to work a little longer with PHP tutorials and examples before launching into this kind of project. When you do start into it, you'll need to ask yourself some questions:
  • How do you collect the information from the HTML form when they hit "SUBMIT"? (HINT: Read up on $_GET and $_POST)
  • How do you know how much gold the person had before they entered into the web page? Perhaps you need to record that in a database somehow? Can you ask them how much they have?
  • How will you store the list of character races and the amount of bonus gold they get? Are there few enough (and a fixed number that's unlikely ever to change) that you can just code that information directly into the PHP program - or will someone who is not a PHP programmer need to expand or change that list in the future?
  • How will you store the list of available items in the store and their prices? Are you sure that there will never be more than three kinds of item on sale? And again, can you be sure that the list would only ever be changed by a PHP programmer in the future?
  • Will you be able to prevent someone cheating by buying a negative number of one of the items in order to buy a lot more of the others? (HINT: Check, if the number of items purchased is less than zero, then either just set it equal to zero - or send them to an error page.)
I strongly suggest that you get the HTML form working first and verify that it passes the right data to your PHP program. If you use the "GET" method for sending the data (definitely the easiest to debug at this stage!) You'll want the HTML to try to call up a URL something like this:
Then, write your PHP code to just "echo" back the race and item quantities so you can be sure that you're getting the right data in the right places.
Once you know that the right data is getting into your PHP code, then you can start saying things like "if ( $_GET['race']=='elf' ) $gold += 10 ;" ...and... "$gold -= $costOfSword * $_GET['numSwords"] ;" ...and..."if ( $gold < 0 ) echo 'You don't have enough gold to buy all that stuff!' ; else echo 'Thank you for shopping at the Adventurer Emporium, you have '.$gold.'gp left.' ; "
Good luck! And by all means come back and ask us more detailed questions as you get closer to having something working. SteveBaker (talk) 15:57, 23 February 2015 (UTC)
To me it logically makes more sense to have two forms, the first where you ask details about the character, and the second where they choose what initial items to buy, based on their selections on the first form. StuRat (talk) 16:44, 23 February 2015 (UTC)
I agree, but generally we're here to solve the problem we're given, and there may be other constraints here. The main reason to do it as you say is that it allows the user to know how much gold (s)he has BEFORE trying to spend it...but on the other hand, they might want to change their selected race in order to enable them to get the equipment they want...which would be harder with two pages. Personally, I believe in doing the calculations in JavaScript interactively, so that the user can see their gold totals going up and down as they change the options on the page - and just having the PHP code verify the results to avoid cheating. But we clearly have a beginner at this kind of work, and complicating things at this point would be counter-productive. SteveBaker (talk) 06:04, 25 February 2015 (UTC)
Perhaps a back button to return to the first form would be a way to enable the "two forms option" to allow changing the character race and get more gold. StuRat (talk) 06:45, 25 February 2015 (UTC)

Thank you very much SteveBaker, this response does help a lot and I am getting better at understanding the exercise. I definitely don't want you to write the code for me then I wont learn anything so thank you for that! So far I have managed to make a if statement that adds the money to the race it is meant to but I have yet to get down the calculation part. I am a bit lost on that. The HTML form is perfectly fine I have a few years experience with that. I now need to make the php page tell you if you have spent to much money and that you have an error because of it and I need to calculate how much money was spent and how much is left. — Preceding unsigned comment added by (talk) 16:48, 23 February 2015 (UTC)

February 24[edit]

Large amount of pictures half need deleted[edit]

I have 5453 photos on my computer that I have taken from a video and when they were taken from the video each photo has a duplicate photo! so the photos name on my windows 7 pc are as follows: Untitled_000000 Untitled_000001 Untitled_000002 Untitled_000003 Untitled_000004 Untitled_000005 ... and so on until the photos get to Untitled_005453

Since the process I used to extract each frame from this video produced a double of each frame so I have 5453 photos when I should have half that amount. Every odd numbered image is a double and I need to find a way to delete every odd number photo without doing it by hand since I dont have enough time to do that. example: Untitled_000000 Untitled_000001 ^are the same photo

Untitled_000002 Untitled_000003 ^are the same photo and I need to get ride of each odd numbered photo in the folder to make sure I have no duplicates. — Preceding unsigned comment added by (talk) 14:22, 24 February 2015 (UTC)

In principle, you can use rm Untitled_?????[02468]. This may overflow your command line, so you might want to use find and xargs like this (all untested ;-): find . -name "Untitled_?????[02468]"|xargs rm. This should work in any POSIX shell (and with Cygwin even under Windows). --Stephan Schulz (talk) 14:53, 24 February 2015 (UTC)
This seems pretty simple: Video on YouTube. --  Gadget850 talk 14:55, 24 February 2015 (UTC)
You could search for *1.jpg and delete all of those, then search for *3.jpg and delete all of those, and so on (assuming they are JPEG files). The search box is in the upper right corner of the Explorer window. -- BenRG (talk) 15:25, 24 February 2015 (UTC)

Not a question, but Chrome is useless[edit]

I keep being told to switch to Google Chrome or Mozilla Firefox. Usually Google Chrome. Well, because of the weather I had to go to a library that didn't have Firefox because I was lucky to find this library open. I wasn't sure about the other libraries. I did most of what I had to do on Internet Explorer but when it came to looking at newspaper web sites that limit the number of articles I can look at, I had to use Chrome and an incognito window. That's what someone told me to do. No explanation is ever given, but every few minutes Google Chrome shuts down. So much for any advice. If I had stayed home, Internet Explorer would have meant I would run into the limit on free articles. But I wouldn't recommend Chrome to anyone.— Vchimpanzee • talk • contributions • 15:52, 24 February 2015 (UTC)

I don't know about your experience, of course. Chrome has never crashed on me. So I doubt this is a problem of Chrome per se, but rather think it's a problem of the particular installation. People will recommend an incognito window, because many sites track things like article views via HTTP cookies, to enforce the limitations. Incognito windows will not have persistent cookies, but will at most keep them for one session,so that the next user can also access restricted content. --Stephan Schulz (talk) 15:57, 24 February 2015 (UTC)
I went to another site and it doesn't seem to have the problem. But I reported the problem when Explorer had it on this site and of course, they could never figure it out. Firefox at the other library doesn't have the problem but I don't know whether it's open.— Vchimpanzee • talk • contributions • 16:02, 24 February 2015 (UTC)
Never mind, Chrome did it again.— Vchimpanzee • talk • contributions • 16:12, 24 February 2015 (UTC)
For IE8+ try InPrivate Browsing.[1] --  Gadget850 talk 16:16, 24 February 2015 (UTC)
Really? I haven't seen the option when I tried. Anyway, on a third web site, just Shockwave Flash crashed. The rest of it is still working.— Vchimpanzee • talk • contributions • 16:25, 24 February 2015 (UTC)
Or was. Shockwave Flash crashed again and then Google Chrome shut down. I do know one site keeps having problems with Explorer. It shut down at least once, but fortunately left my other tabs in place, though these were Hotmail emails where the draft had been saved.— Vchimpanzee • talk • contributions • 16:48, 24 February 2015 (UTC)
If you you don't get along with Chrome, then don't use it – it is that simple. I don't happen to like Chrome either but that isn't because I think Chrome is no good. Just think you were unlucky. Try again and persevere – it might just be an nouveau operator problem. Does this Library allow you to inset a pen-drive and boot into Linux. It effectively allows you to carry around your favorite browser, email-client (with bookmarks, extensions, pass-words, etc.) FTP client etc., etc., etc. Some institutions (maybe your library too) may have a block on pen-drive- booting as they think it is a security risk and gives their IT people more work to do, in order for you to boot from a pen-drive. If so challenge them upon this. If you don't ask you don't get. There is no perfect browser (otherwise we would all be using it). To find out what suit you, means (unfortunately) a bit of experimentation. No Pain, no Gain. So, from just one exposure to Chrome, I think you are not being fair.--Aspro (talk) 19:40, 24 February 2015 (UTC)
I've used Chrome, but for what I tried to do today, it's not working. Hopefully the weather will be back to normal next week and I can use Firefox again.— Vchimpanzee • talk • contributions • 22:07, 24 February 2015 (UTC)

Wikipedia-related applications[edit]

Where do I find help if I want to code something involving Wikipedia's infrastructure? Discuss-Dubious (t/c) 18:19, 24 February 2015 (UTC)

Don't know exactly what you mean. Does our article How to become a MediaWiki hacker link up with what's in your mind?--Aspro (talk) 21:12, 24 February 2015 (UTC)
Something more like Wikiscanner or Wiki-Watch. Think "plugin". Discuss-Dubious (t/c) 23:54, 24 February 2015 (UTC)
Start by reading the MediaWiki API documentation. Next, read about Wikipedia:Database download procedures and policies. Also consider whether client-side JavaScript, e.g. Wikipedia:User scripts, meet your needs. Nimur (talk) 01:51, 25 February 2015 (UTC)
Thanks, I'll read them. Discuss-Dubious (t/c) 20:05, 26 February 2015 (UTC)

regarding IEEE paper[edit]

I am doing a mini project based on the IEEE paper PSMPA.So as part of my literary survey i had to go through similar articles but most of them had very little in,is there any medical centres or hospital that has implemented it(across the globe) or has likewise mechanism.also,it would be very helpful if i could get few links for my survey and understanding. (talk) 19:32, 24 February 2015 (UTC)

Please provide a link or description of "PSMPA". StuRat (talk) 19:41, 24 February 2015 (UTC)
Is this what you meant: [2] ("Patient Self-controllable Multi-level Privacy-preserving Authentication") ? StuRat (talk) 19:43, 24 February 2015 (UTC)
Have you tried google scholar's "related articles" feature? See here [3] for that, and check out these [4] papers that have cited the PSMPA paper. I bet some of those are similar enough to be included in a student project. If not, try searching for other works by those authors, or using their keywords to search for other articles, like so [5]. SemanticMantis (talk) 20:46, 24 February 2015 (UTC)

@StuRat.yeah,thats what I meant.sorry for late reply. @SemanticMantis.thanks, links kind of worked (for my understanding). — Preceding unsigned comment added by (talk) 06:20, 28 February 2015 (UTC)

Why Boolean does not work in Google anymore?[edit]

It seems to me that Boolean is absolutely useless on Google. Try typing "NOT" and then you actually find what you DON'T want in the search results or the search engine may interpret that "NOT" is actually part of your query!?!? Is it me, or has Google changed? (talk) 21:48, 24 February 2015 (UTC)

If you use a minus sign, like Jaguar -cat, it should find non-feline Jaguars, i.e. the car manufacture. However, minus-sign is a strong hint, not an absolute requirement. LongHairedFop (talk) 21:52, 24 February 2015 (UTC)
OR works in Google searches, and - to exclude a search term has always worked, but I can't find evidence that NOT ever worked. Parentheses don't work either. -- BenRG (talk) 07:40, 26 February 2015 (UTC)

Trustable DVD/Blu-Ray alternative to Format Factory?[edit]

I've been using Format Factory to burn my old DVD's to my hard drive, and have been about 75% successful. Some of the DVD's just won't burn, and others will not provide me with the proper subtitles. I have been through the advice on subtitles at google for Format Factory, and have been able in many cases to fix the subtitle problem with the advanced setting, although not always--often I get the commentary rather than the literal subtitles.

But I still have recent DVD's and Blu-Rays I can't burn. I know I am entitled to make a single backup copy of a video per US Supreme Court ruling. So I am curious what trustable free Blu-Ray (especially) and DVD burning programs are available besides Format Factory for free download. (I am pretty handy, and know how to do custom installs to avoid unwanted sideware.)

PS, my assumption has been that AVI is the best format, am I wrong in this assumption?

Thanks. μηδείς (talk) 22:59, 24 February 2015 (UTC)

If you want to preserve all the menu functions, you may need to keep it in it's native format. I've been able to do that with regular DVDs (except Disney's, which uses some different type of copy protection). I haven't tried this for BluRay. If you just want the movie to play through, with the captions and language burnt in, then a variety of formats can handle that. StuRat (talk) 23:27, 24 February 2015 (UTC)
Thanks, I am not very much worried about the format, since I can play just about anything. I have noticed that burning a DVD to AVI seems to best retain the original quality. My concern is mainly what sort of burner can I use other than Format Factory to back up my blu-rays to my hard drive that is free and reliable. μηδείς (talk) 00:02, 25 February 2015 (UTC)
I think you mean ripping, not burning.
AVI is not a video format, just a container, so it's meaningless to ask whether AVI preserves video quality better. A particular tool might, if you pick what it calls "AVI" output, use a video format, compressor, and compression settings that happen to give you good quality. In that case, if you can figure out what the parameters are, you could put the same video in another container that supports more DVD-like features than AVI (probably MKV).
If you can afford the space, you'd probably get the best compatibility, and definitely the best video quality, by just copying the original files (.vob and .ifo) rather than transcoding. If you want to transcode, these tools might be good (I've never used them, though). Wikipedia also has Comparison of DVD ripper software. -- BenRG (talk) 04:04, 25 February 2015 (UTC)
Thanks, BenRG. That makes sense to the point I as a layman understand it, and I'll look at the links tomorrow at lunch. What I want is to upload my DVD collection to my copious harddrive, be able to watch what I have uploaded on my computer, and be able to burn it again later if necessary. So yes, ripping is my main concern, but I want the files ripped in a way that I could re-burn them if I have to, say to play at my relatives' house at Christmas. I have been using the AVI output from FormatFactory since it plays best on my various computer video players. I am not wedded to any format, so long as it is convertible, and burnable should I need it.
My main issue at this point is (1) Certain disks, including Blu-Rays, simply won't rip with FF, and some (2) DVD's that do rip will not do so with the proper soundtrack or subtitles, even though I have the basic and advanced setttings right. So I am mainly looking for an alternative safe ripper to FF, I suppose.
Oh, and I have tried copying the vob files, but this does not usually give me the video with the foreign dialog and the English subtitles at the same time in a way I can play back. Thanks. μηδείς (talk) 05:30, 25 February 2015 (UTC)

February 25[edit]

Website going in circles[edit]

Can anyone explain what's going on at When I view it in Internet Explorer 11 (going straight to the URL, not via Google or something else), it goes on infinite loop: changes to, which changes to, which changes to, etc. — it changes multiple times per second. Is there a normal explanation for this weird behavior? Note that it works fine in Firefox 35.0.1; perhaps it's just a browser weirdness. I don't have Chrome, so I can't check that. Nyttend (talk) 03:39, 25 February 2015 (UTC)

Sounds like a bug in the website to me. I imagine they check on your browser, and if it's IE11 they send you to that other page, but they never actually coded that page, so it just returns to the calling page, which then sends you back to the IE11 page, etc. If that's it, all they need to do is comment out the line that redirects it to that (nonexistent) page and the problem should be solved. StuRat (talk) 07:53, 25 February 2015 (UTC)
Might be URL_redirection#Redirect_loops? Anecdata: when I followed your first link in firefox, the URL flickered back and forth bit, then the page loaded properly. It seemed to work more cleanly when I turned off NoScript. SemanticMantis (talk) 19:14, 25 February 2015 (UTC)
General tip: some sites give behavior like that if you don't accept cookies. -- (talk) 20:41, 25 February 2015 (UTC)

How Does Ruby Store Arrays, and else, in Memory[edit]

In Ruby if you call the ID of an object, you can get a pointer to that object from the return, then pass that to a dll and process the object. What I don't understand, and haven't found a good source for, is the structure of what that pointer points to. In other words, if I had an array in Ruby, what do I do in my dll with that pointer to operate on its contents (obviously an array of floats isn't going to point to a bunch of what, then?)? My main issue is that I'm not sure what to read to figure this out and I'm not sure how to figure it out myself - any direction or, sigh at the pun, pointers would be helpful. Thank you:-)Phoenixia1177 (talk) 18:57, 25 February 2015 (UTC)

It's my understanding that you can write C code using ruby.h and use the rb_ary_entry function to get the address of each element in a ruby array (which insulates you a bit if they change the format of how the Ruby runtime stores arrays. Some examples of this are here and here. But this is when you're writing extensions for Ruby - for when the C code in the DLL knows about Ruby internals - that's probably not what you want. Instead, it sounds like you want to define some code (and thus some data structures) in C, and have Ruby call them. In that case you'd use the Ruby FFI instead. First you write the DLL in C as if it was doing to be called from C (and maybe you test it first with a C executable). Then you write a Ruby wrapper using the FFI (here's another example) which just describes the C functions, their parameters, and the data structures they work on in a way the Ruby interpreter can grok. -- Finlay McWalterTalk 20:21, 25 February 2015 (UTC)
Thank you very much, that's a wonderfully helpful answer. Unfortunately, I'm working with a piece of software that has a Ruby interpreter embedded in it and doesn't allow using anything that they didn't build in. They did build in the win32api and, since object id's are based on pointer values to the object, it gives me a way of extending it a bit (the real problem is that Ruby is too slow and I need C code to do a specific operation very fast - something horrid in a loop is causing lag).Phoenixia1177 (talk) 05:17, 26 February 2015 (UTC)

Problems with my computer's text display[edit]

A few weeks back, my computer automatically installed some new updates, which is fairly typical — except that it's caused problems with how the text in my browser is rendered. I've uploaded a screenshot of the main page (I use the classic design from 2010 and earlier) as an example, which can be found here. It's made Wikipedia and several other sides almost uncomfortable to browse. Does anybody have any insight into a possible solution? I've tried system restore and enabling ClearType, but neither made a difference.

Just for the record, I've been using Windows Vista since 2007; never got around to upgrading my operating system (been planning to for years). My main browser is Google Chrome, but I've also checked the font rendering on Mozilla Firefox and it seems to have the same problem. Kurtis (talk) 19:21, 25 February 2015 (UTC)

Yes, Microsoft really screwed the pooch on this one. Here's a discussion with the solution (further up this same page): Wikipedia:Reference_desk/Computing#Display_problem_in_Wikipedia_editing_window. StuRat (talk) 20:55, 25 February 2015 (UTC)
Thanks for the link. I should have realized that I might not be the only one dealing with this issue. Kurtis (talk) 18:11, 26 February 2015 (UTC)
You're welcome. Can we mark this Q resolved ? StuRat (talk) 19:55, 27 February 2015 (UTC)
Yes — in fact, that's just what I was about to do. Feel free to do it for me. ;) Kurtis (talk) 21:50, 27 February 2015 (UTC)
Done ! StuRat (talk) 22:00, 27 February 2015 (UTC)

February 26[edit]

that nice young man[edit]

Supposing I had a Windows computer, and supposing that I took the advice of that earnest caller from “Windows Technical Support” — what typically happens?

(So far either they hang up when I press for the identity of their employer, or I string them along until I get bored and say “It's not working because I have a Macintosh.”)

I do have a Windows VM that I haven't turned on in months. Would whatever-it-is work on that? —Tamfang (talk) 04:34, 26 February 2015 (UTC)

I've played along quite a while, and they show you the error log on your computer, which invariably shows thousands of errors since the O/S was installed. This is designed to cause panic in the sucker user, who then agrees to pay them around a hundred dollars to clean out their PC. Now what happens when they get your credit card number I do not know. They might bill you exactly what they agreed to and then direct you to a web site where you can get any one of many free malware removal tools. Or they might bill your credit card until they hit the limit and never deliver anything at all. StuRat (talk) 04:43, 26 February 2015 (UTC)
Careful, as something like that can be the final stage in confirming your identity for a ransomware hack. Sir William Matthew Flinders Petrie | Say Shalom! 7 Adar 5775 04:57, 26 February 2015 (UTC)
See Technical support scam. PrimeHunter (talk) 05:04, 26 February 2015 (UTC)
There are quite a few videos on YouTube where people have recorded their conversations with these scammers - try searching for "windows support scam" or similar. AndrewWTaylor (talk) 09:04, 26 February 2015 (UTC)
If you do want to see what happens, I'd recommend using a prepaid credit card, so that they can't hit you for too much, and a spare PC, so you can zap it after you've checked what they've done. — Preceding unsigned comment added by LongHairedFop (talkcontribs) 10:25, 26 February 2015 (UTC)

"autovisual media"[edit]

What is/are "autovisual media" as mentioned in AVFoundation? Should it just say "audiovisual media?" And what does the article mean by "framework" since it just links to a disambiguation page? Edison (talk) 19:44, 26 February 2015 (UTC)

Source agrees with your first query. The other is probably "software framework". Discuss-Dubious (t/c) 20:01, 26 February 2015 (UTC)

In Apple technologies, "framework" has a very specific meaning. See: What Are Frameworks from the Framework Programming Guide. A framework is a specific directory-structure that contains a dynamic library, its resources, and its headers. Nimur (talk) 16:58, 28 February 2015 (UTC)

Facebook application controlling system[edit]

Hello, I would like to know, how facebook application is controlled, is it controlled from one country or from different country? -- (SuperGirlsVibrator (talk) 20:05, 26 February 2015 (UTC))

This was originally asked at the Misc desk, and the OP was advised to move the question here. I've taken the liberty of copying the replies. LongHairedFop (talk) 16:24, 27 February 2015 (UTC)
Apology, I did not realise you meant relocating the post... -- (SuperGirlsVibrator (talk) 18:16, 27 February 2015 (UTC))
What did they say when you asked them? Nanonic (talk) 18:32, 25 February 2015 (UTC)
Or what did our article say? KägeTorä - () (Chin Wag) 18:44, 25 February 2015 (UTC)
BTW, you might have been better asking this in the computing desk. and resolve to different IP addresses, depending on where you are located (api means Application Program Interface, and describes how two bits of a program communicate, or an application communicate with its server). I haven't checked, but I would assume that the addresses are routed to separate datacentres, at least one on each continent. LongHairedFop (talk) 10:45, 26 February 2015 (UTC)
Yeah, that's what I was thinking at first, which is the reason I asked. Thanks for introducing me to 'api'; new to me. -- (SuperGirlsVibrator (talk) 19:57, 26 February 2015 (UTC))

Internet money making possibilities[edit]

Does anybody know how I could make money from the internet? E.g., ‘Pay per click’, getting paid for ‘every e-message’ I send, and so on. Note that the two quoted are probably the easiest for me… I need to make quick money in a small time… I’ve searched the internet for years, I’ve not found anything as such, whatever I found so far, it is either long to do, less money or untrustworthy. I need help please… -- (SuperGirlsVibrator (talk) 20:07, 26 February 2015 (UTC))

Too many people in third world countries doing it already for peanuts. Try this approach:[6]. On a plus side, you will not be stuck indoor all day and slaving over a hot keyboard. Its all tax free too!--Aspro (talk) 22:29, 26 February 2015 (UTC)
Okay, thank you. I’ve saved the link; I’ll view it at the starting of next month… -- (SuperGirlsVibrator (talk) 19:58, 27 February 2015 (UTC))
There's no reliable way to earn a lot of money quickly without much skill or training, online or IRL. It's possible to get lucky, but not easily repeatable. See also Get-rich-quick_scheme#Online_get-rich-quick_schemes. SemanticMantis (talk) 15:09, 27 February 2015 (UTC)
I'll read through... Thanks. -- (SuperGirlsVibrator (talk) 19:58, 27 February 2015 (UTC))
You won't make a lot of money fast, but Mechanical Turk is a basically legitimate way to earn some money online. SemanticMantis (talk) 19:34, 27 February 2015 (UTC)

February 27[edit]

February 28[edit]

problem with IDEs[edit]

I was using MySQL,eclipse and apache tomcat server for my java project(I am actually a beginner with IDEs)and had completed few modules.while browsing few days back my antivirus showed a message like this "ATTACK FROM (SOME IP ADDRESS) THROUGH MYSQL VULNERABILITIES".since then I cant open MySQL it shows only mysqladmin and it takes 5-6 steps to view the stored results in the database.earlier I had to just click on the shortcut(a symbol like thunderbolt) in toolbar(I know i really s_ _k at this).the MySQL version is 2.9 and I am using win8. — Preceding unsigned comment added by (talk) 06:33, 28 February 2015 (UTC)

Google Search[edit]

Is there a way to make Google return results from a few specific websites. I have used "[Query]" method before.(Example) Thanks.--Skr15081997 (talk) 09:42, 28 February 2015 (UTC)

Use OR: "Bhopal: A Prayer for Rain" OR OR PrimeHunter (talk) 13:17, 28 February 2015 (UTC)