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• How do you go about understanding the source code of an Open source project?

  - by Anirudh Vemula

  I am planning to contribute code through patches to some open source organisations to become more aware of open source development. I have chosen some organisations but when I download their source code, I don't seem to understand even a bit of it. How do I go about understanding their source code? I tried going through resolving a bug but…

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• What's a nice explanation for pointers?

  - by Macneil

  In your own studies (on your own, or for a class) did you have an "ah ha" moment when you finally, really understood pointers? Do you have an explanation you use for beginner programmers that seems particularly effective? For example, when beginners first encounter pointers in C, they might just add &s and *s until it compiles (as I…

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• Webshop for digital goods with voucher / gift card system [duplicate]

  - by Kelzama

  This question already has an answer here: Which Ecommerce Script Should I Use? 1 answer I'm searching for a webshop which…

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• "Waiting for Sound System to respond." error dialog

  - by Paulo Truta

  Hello guys. I'm having a nasty problem with the Sound Menu on my Ubuntu 10.10 Installation. What happens is that the sound control icon is blocked, and i can't control the master volume. If i try to get to the Sound Preferences i get a little Pop-Up Window saying: "Waiting for Sound System to respond...". Don't know what to do...…

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• Scrum for Team System v3 RTM available

  - by Enrique Lima

  If you are using the Scrum for Team System (aka Conchango Scrum Template), it has hit RTM and it is available for download.  First you will need to register and then you will ne able to access the goods. There is also a very well laid out Getting Started with v3 guide, put together by Crispin Parker. Note:  Very…

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• Do you count a Masters in CS as a negative?

  - by Pete Hodgson

  In my experience interviewing developers I feel like candidates who've achieved a Masters in Comp Sci tend to be worse programmers on average that those who don't have a Masters. Is that just me, or have others noticed this phenomenon? If so, why would that be the case? UPDATE I appreciate the thoughtful comments. I think I…

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• HD video editing system with Truecrypt

  - by Rob

  I'm looking to do hi-def video editing and transcoding on an unencrypted standard partition, with Truecrypt on the system partition for sensitive data. I'm aiming to keep certain data private but still have performance where needed. Goals: Maximum, unimpacted, performance possible for hi-def video editing, encryption of…

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• What are some recommended video lectures for a non-CS student to prepare for the GRE CS subject test?

  - by aristos

  Well the title kinda explains all there is to explain. I'm a non-cs student and was preparing to apply PhD programs in applied mathematics. But for my senior thesis I've been reading lots of machine learning and pattern recognition literature and enjoying it a lot. I've taken lots of courses with statistics and stochastics…

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• Version hash to solve Event Sourcing problems

  - by SystematicFrank

  The basic examples I have seen about Event Sourcing do not deal with out of order events, clock offsets in different systems and late events from system partitions. I am wondering if more polished Event Sourcing implementations rely on a version stamp of modified objects? For example, assuming that the system is…

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• Mail Scanning System

  - by Mr D

  In the same way gmail can generate ads based on email content, I am looking for a way to develop a system which can: Allow users to connect their email address to our site It then would continously monitor all incomming emails From the incomming emails there would be a critera(e.g. a certain address or subject)…

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• System does not detect USB pendrives

  - by cshubhamrao

  This USB thing is driving me crazy. 2 problems in time span of 3 hours. Ok I was already trying to cope up with "wrong fs type, bad option, bad superblock" error while mounting FAT Drives when to my amazement I discovered that none of the USB Storage devices showed up in the system Useful outputs: - tail…

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• Icons missing from launcher, system settings, folders

  - by Giannis Rizos

  Various icons from launcher are missing. The first one is from Home folder menu the second from Terminal the last one from Desktop Switcher. This happened after I upgraded to 11.10 from 11.04. I have created a New (Untitled Folder) folder in my desktop and the icon is missing too. The same occurs in…

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• file copy error from system to cifs mount

  - by dwpriest

  When coping a file greater than 64kB from an Ubuntu server to a CIFS mounted windows share, most of the data is copied, but it seems the last chunk doesn't get copied. The size doesn't match, and the md5 check sums don't match. I have plenty of file space, but then I use cp, I get the following... …

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• How are minimum system requirements determined?

  - by Michael McGowan

  We've all seen countless examples of software that ships with "minimum system requirements" like the following: Windows XP/Vista/7 1GB RAM 200 MB Storage How are these generally determined? Obviously sometimes there are specific constraints (if the program takes 200 MB on disk then that is a…

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• Efficient existing rating system for multiplayer?

  - by Nikolay Kuznetsov

  I would like to add a rating for online version of a board game. In this game there are many game rooms each normally having 3-4 people. So I expect that player's rating adjustments (RA) should depends on Rating of opponents in the game room Number of players in game room and final place of a…

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• Get access to files on old HD installation and remove system files

  - by Blake

  I have been fooling with ubuntu for only a year or so. Added SSD installed ubuntu(12.04 64bit) connected old drive with ubuntu on it. everything seems to work well, except for access to some files. I would like to do two things: 1) move the swap file from the SSD to the partition on the HD. 2)…

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• Which version control system to use?

  - by deshmukh

  I am looking at using a version control system to ensure that I can go back in time to a particular version for all documents in ~, if I have to. What is the best suited tool for this given that: I am without much experience in version control systems Several files will be plain text files…

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• Scalable distributed file system for blobs like images and other documents

  - by Pinnacle

  Cassandra & HBase both do not efficiently support storage of blobs like images. Storing directly on HDFS stresses the Namenode because of huge number of files. Facebook uses Haystack for images and attachments storage, but this is not open source. So is Lustre a good choice for…

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• How USB drives goes after system hard drives

  - by raihanchy

  I am using Ubuntu 12.04 LTS. My hard drives usually comes as: sda, with 'sudo blkid' and if I plug-in any USB drive, they comes as: sdb, sdc etc; after sda. That's fine!!! But problem arises after I restart my laptop with connecting those USB drives. They alter and comes first and…

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• Making more complicated systems(entity-component-system model question)

  - by winch

  I'm using a model where entities are collections of components and components are just data. All the logic goes into systems which operate on components. Making basic systems(for Rendering and handling collision) was easy. But how do I do more compilcated systems? For example, in a…

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• Repairing or recreating a bootloader on a multi-booting EFI GPT system

  - by Emre

  Reinstalling Ubuntu messed up my boot loader so I I tried to fix it with boot repair. It detected my OSX installation and asked about removing the "separate boot/EFI". It also said my partition was full despite the fact that it wasn't and asked me to remove stuff. I declined both…

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• Keep getting messages about internal system errors

  - by Tomas Lycken

  I keep getting popups about internal system errors (see screenshot below) on irregular intervals (several times a day), that I don't know what to do about. If I continue through the dialog and try to report the error back to the Ubuntu project, I get a message stating that…

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• Common mistakes made by new programmers without CS backgrounds [on hold]

  - by mblinn

  I've noticed that there seems to be a class of mistakes that new programmers without CS backgrounds tend to make, that programmers with CS backgrounds tend not to. I'm not talking about not understanding source control, or how to design large programs, or a whole host of…

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• I'm having trouble learning

  - by Gavin Sapp

  I'm only 13 but i'm genuinely interested in CS and would really like it if I could actually accomplish it. I've read books on C++ and C#, but ALL of them are the same!! They all say "Ok so since you have no prior knowledge in this what so ever, write a snippet that will…

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• How can I optimize my development machines files/dirs?

  - by LuxuryMode

  Like any programmer, I've got a lot of stuff on my machine. Some of that stuff is projects of my own, some are projects I'm working on for my employer, others are open-source tools and projects, etc. Currently, I have my files organized as follows: /Code …

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