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  • Time Machine (archive) of pre-Leopard systems?

    - by benc
    I want to get off an older Mac OS X system permanently. It is an iBook G3, so that has two important characteristics: Power PC, not Intel based. Runs only Tiger, not Leopard. This means, as far as I can tell: Cannot run Time Machine directly. Here's the approach I have been contemplating: Mount the drive in Firewire mode. Back up the drive as a external drive to the Time Machine volume. Disconnect the drive (permanently). However, I'm concerned that this drive will eventually age out, when the Time Machine volume fills up, and the old-system-as-external-drive is gone. Would it be better to do a single backup with another utility, to shared disk?

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  • Amazon Kindle e-Ink based device programming: Java ME CDC old school

    - by hinkmond
    If you like doing Amazon Kindle development in the old-school way (Java ME CDC-based apps) on their e-Ink based readers, then here's how to download and use the Amazon Kindle Development Kit (KDK). See: Download Amazon KDK Here's a quote: We're excited to introduce the all- new Kindle family: Kindle, Kindle Touch, and [blah-blah]. The KDK has APIs, tools, and documentation to help you create active content for Kindle, Kindle Touch, and other E Ink Kindles. Kickin' old school with Java ME CDC technology is the way to go. You can come up with the next Word with Friends this way. Hinkmond

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  • What programming concept is used in Nokia Lumina City Lens application [closed]

    - by gowri
    I am totally impressed about the Nokia City Lens application. How does the Nokia Lumia City Lens app work? Nokia Lumia City Lens app detects shops, restaurants, etc. by scanning the visual environment. But how can it detect shops or anything by only scanning visual information? Because we need a 360 degree view to detect a location. Because we can't simply match visual information and get that data. The visuals will change proportionally with distance and angle. So how does this app match the location and retrieve the information? Can anyone explain the concept What technology or algorithm is used in this app?

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  • "Guiding" a Domain Expert to Retire from Programming

    - by James Kolpack
    I've got a friend who does IT at a local non-profit where they're using a custom web application which is no longer supported by the company who built it. (out of business, support was too expensive, I'm not sure...) Development on this app started around 10+ years ago so the technologies being harnessed are pretty out of date now - classic asp using vbscript and SQL Server 2000. The application domain is in the realm of government bookkeeping - so even though the development team is long gone, there are often new requirements of this software. Enter the... The domain expert. This is an middle aged accounting whiz without much (or any?) prior development experience. He studied the pages, code and queries and learned how to ape the style of the original team which, believe me, is mediocre at best. He's very clever and very tenacious but has no experience in software beyond what he's picked up from this app. Otherwise, he's a pleasant guy to talk to and definitely knows his domain. My friend in IT, and probably his superiors in the company, want him out of the code. They view him as wasting his expertise on coding tasks he shouldn't be doing. My friend got me involved with a few small contracts which I handled without much problem - other than somewhat of a communication barrier with the domain expert. He explained the requirements very quickly, assuming prior knowledge of the domain which I do not have. This is partially his normal style, and I think maybe a bit of resentment from my involvement. So, I think he feels like the owner of the code and has entrenched himself in a development position. So... his coding technique. One of his latest endeavors was to make a page that only he could reach (theoretically - the security model for the system is wretched) where he can enter a raw SQL query, run it, and save the query to run again later. A report that I worked on had been originally implemented by him using 6 distinct queries, 3 or 4 temp tables to coordinate the data between the queries, and the final result obtained by importing the data from the final query into Access and doing a pivot and some formatting. It worked - well, some of the results were incorrect - but at what a cost! (I implemented the report in a single query with at least 1/10th the amount of code.) He edits code in notepad. He doesn't seem to know about online reference material for the languages. I recently read an article on Dr. Dobbs titled "What Makes Bad Programmers Different" - and instantly thought of our domain expert. From the article: Their code is large, messy, and bug laden. They have very superficial knowledge of their problem domain and their tools. Their code has a lot of copy/paste and they have very little interest in techniques that reduce it. The fail to account for edge cases, while inefficiently dealing with the general case. They never have time to comment their code or break it into smaller pieces. Empirical evidence plays no little role in their decisions. 5.5 out of 6. My friend is wanting me to argue the case to their management - specifically, I got this email from their manager to respond to: ...Also, I need to talk to you about what effect there is from Domain Expert continuing to make edits to the live environment. If that is a problem for you I need to know so I can have his access blocked. Some examples would help. In my opinion, from a technical standpoint, it's dangerous to have him making changes without any oversight. On the other hand, I'm just doing one-off contracts at this point and don't have much desire to get involved deeply enough that I'm essentially arguing as one of the Bobs from Office Space. I'd like to help my friend out - but I feel like I'm getting in the middle of a political battle. More importantly - if I do get involved and suggest that his editing privileges be removed, it needs to be handled carefully so that doesn't feel belittled. He is beyond a doubt the foremost expert on this system. I'm hoping this is familiar territory for some other stackechangers, because I'm feeling a little bewildered. How should I respond? Should I argue that he shouldn't be allowed to touch the code? Should I phrase it as "no single developer, no matter how experienced, should be working on production code unchecked"? Should I argue to keep him involved with the code, but with a review process? Should I say "glad I could help, but uh, I'm busy now!" Other options? Thanks a bunch!

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  • Which Version Control Systems support LDAP/AD users and groups

    - by Jason Irwin
    Does anyone know which of the big players (if any) support LDAP/AD users and groups for authentication AND database permissions? Specifically, I'm wondering if SVN, GIT, Mercurial etc. will allow users to login/connect based on AD permissions and also allow granular permissions to be applied to folders within the VC database based on groups within AD. So far my research has not shown this to be possible....

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  • Am I programming too slow?

    - by Jonn
    I've only been a year in the industry and I've had some problems making estimates for specific tasks. Before you close this, yes, I've already read this: http://programmers.stackexchange.com/questions/648/how-to-respond-when-you-are-asked-for-an-estimate and that's about the same problem I'm having. But I'm looking for a more specific gauge of experiences, something quantifiable or probably other programmer's average performances which I should aim for and base my estimates. The answers range from weeks, and I was looking more for an answer on the level of a task assigned for a day or so. (Note that this doesn't include submitting for QA or documentations, just the actual development time from writing tests if I used TDD, to making the page, before having it submitted to testing) My current rate right now is as follows (on ASP.NET webforms): Right now, I'm able to develop a simple data entry page with a grid listing (no complex logic, just Creating and Reading) on an already built architecture, given one full day's (8 hours) time. Adding complex functionality, and Update and Delete pages add another full day to the task. If I have to start the page from scratch (no solution, no existing website) it takes me another full day. (Not always) but if I encounter something new or haven't done yet it takes me another full day. Whenever I make an estimate that's longer than the expected I feel that others think that I'm lagging a lot behind everyone else. I'm just concerned as there have been expectations that when it's just one page it should take me no more than a full day. Yes, there definitely is more room for improvement. There always is. I have a lot to learn. But I would like to know if my current rate is way too slow, just average, or average for someone no longer than a year in the industry.

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  • How do you combat programming fatigue?

    - by Karpie
    Not fatigue as in 'I need sleep' but fatigue as in 'I just can't be bothered anymore' which usually sets in when you hit roadblocks in whatever project you're working on, generally the closer you get to deadlines. It can be in work projects or personal projects, but it's something I keep hitting more and more lately. I'll get an idea, get into working on it, have a few really good days and make progress, then just some niggly things will trip me up, I can't get things working the way you want, I've hit limitations in the framework, I've got problems I can't find documentation for, etc. and it just gets too frustrating. Or am I alone in this?

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  • How do you gracefully upgrade mission critical systems to wildly disparate systems?

    - by Ernie
    In the span of the 12+ years of my career, I have yet to overcome this hurdle and I suspect the answer simply isn't easy or even possible, so I ask everyone here for their experience. Say that you're running into egregious problems that can only be fixed by moving from one platform to another - either from making a mistake in choosing the platform that was chosen years ago, or simply growing beyond what the system was originally designed for. You know for certain that the cruft that has built up over time will invariably mean that it will be nearly impossible to test for all the things that will certainly lead to tech support hell - which we all know leads to the loss of customers. Not that customers aren't already complaining about the egregious problems that already exist! The best possible way that I've discovered so far is to maybe devise a plan for the changeover, test it on a few clients, test it on a dozen clients, test it on a hundred clients, then finally finish the changeover for everyone and pray that you've worked out all the bugs with those first hundred and twenty, and that the animal by-products will not hit the ventilation system in the most spectacular fashion possible. However, that doesn't mean that it won't anyway. So say that you're moving from Exchange to Exim (or even just Sendmail to Exim). How do you handle it?

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  • Office jukebox systems

    - by Jona
    We're looking for a good office jukebox solution where staff can select songs via a web interface to be played over the central set of speakers. Must haves: Web Interface RSS / easy to scrap display of currently playing songs Ability to play mp3s and manage an ordered playlist. Good cataloguing of media. Multiple OSs supported as clients - Windows, Mac, Fedora Linux (will probably be accomplished by virtue of a web interface). We have tried XBMC which worked well as a proof of concept however the web interface is just too immature and has too many bugs for a reliable multi-user solution. I believe the same will be true of boxee. Nice to have: Ability to play music videos onto a monitor Ability to listen to radio streams specifically Shoutcast and the BBC. Ability to run on Linux is a nice to have but windows solutions which worked well would certainly be considered. I am aware of question 61404 and don't believe this to be a duplicate due to the specific requirements.

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  • Sharing wireless internet connection between 2 Ubuntu 10.04 systems using cross-over cable

    - by Gary
    I have a Lenovo T60 with Ubuntu 10.04 connected with a cross-over cable to a Dell Vostro 1400, also running Ubuntu 10.04. My internet is coming into the Lenovo through an external wireless antennae, and I want to share the internet with the Dell. On the Lenovo: eth0 connection has IPv4 Settings 'Shared to other computers' I can ping the Dell (10.42.43.10) successfully I can use mtr to trace to www.google.com successfully On the Dell: eth0 connection has IPv4 Settings 'Automatic DHCP' I can ping the Lenovo (10.42.43.1) successfully when I use mtr to trace to www.google.com, I can only reach 10.42.43.1 I must be missing some setting, but cannot see what it is; can anyone help me?

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  • Disk monitor script with long file systems

    - by DD.
    $ df -H Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_app001-lv_root 34G 12G 21G 35% / tmpfs 8.4G 0 8.4G 0% /dev/shm /dev/sda1 508M 54M 429M 12% /boot /dev/mapper/vg_app001-lv_home 19G 309M 17G 2% /home I want to run a disk monitor script but because the filesystem is so long the row has been split into two lines and the script fails. Any suggestions?

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  • Matching my skills with Java and Web Programming

    - by John R
    here is my main question: What is the most common way that Java is used in web development? The reason I ask: I am currently in the process of finding my first internship. Every employer has a separate set of languages, technologies and acronyms they want their candidates to know. In school I did well with Java. As a hobby and interest I have developed a handful of web pages widgets, scripts, etc. My university emphasized Java, C and theory. My hobbies emphasize HTML, PHP, JavaScript, CSS, and a little jQuery, etc. I can't learn a dozen different technologies to satisfy most prospective employers (in what is left of the summer). I think my best bet is combine my skills with Java and my interests in web development. That brings me back to my original question: What is the most common way that Java is used in web development?

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  • rfid programming

    - by MaKo
    hi guys, I got a gift from a friend, 2 readers for RFID, and some cards (from a Chinese company called daily rfid), the kind of work, because it comes with some demo software written in Delphi, that reads the id of the card (myfare compatible, ISO14443A ) but the problem is that if I try to use the demo to write to them, it doesnt seem to work, it have another demo written in c#, (compiled and executable from /bin/debug, the DL600DemoCSharp.exe), the software opens, but when click on connect, I get this error Unhanded exception.. unable to load DLL 'BasicB.DLL' so I load the dll on windows/system32, but when I try regsvr32 BasicB.dll I get, error the module "BasicB.dll" was loaded but hte entry-point DllRegisterServer was not found. Make sure that "BasicB.dll" is a valid DLL or OCX file and then try again have written to the company but no response, I program in objective C, so I kind of understand c#, but how to make this cards work? - shall I continue with the delphi, and try to write to them with it - or with c# - either way I would have to write the code to read write to them,, or is there any software to work with this modules?? thanks a lot!

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  • The Cobra Programming Language

    There are suddenly a number of strong alternatives to C# or VB. F#, IronPython and Iron Ruby are now joined by an open-source alternative called Cobra. Phil is taken by surprise at a language that is so intuitive to use that it is almost like pseudocode.

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  • Articles of x386 and later CPU based systems

    - by user32569
    Hi there. I know this is hard question, and possibly not to be answered here, but if there is some article, or more you know about, please post a link. About books, its sad but many great computer books cannot be bought in my country. So, you can find many articles online, which says how memory was mapped back in pre x386 CPU. How there was explicit holes ready for MMIO BIOS, Video BIOS, etc. How there was A20 line for allowing higher memory access etc. Problem is, time changed. Today BIOSes are many times larger, and pure x86 16bit mode is used for booting and ROM flashing only. OS ignore BIOS as they access everything using drivers. And I just want to know, how it works today. I know not so specific question, but I read OS dev wiki, many articles, but all refering to days before massive usage of pure 32bit CPUs.

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  • Is programming in layers real?

    - by Aura
    I am fairly new in product development and I am trying to work over a product. The problem that I have realized is that people draw diagrams and charts showing different modules and layers. But as I am working alone (I am my own team) I got a bit confused about the interaction I am facing in the development within the programs and I am wondering whether developing a product in modules is real or not? Maybe I am not a great programmer, but I see no boundaries when data start to travel from frontend to backend.

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  • COM+ applications deployment behaves different on different systems

    - by sharptooth
    In order to give my COM+ application enough credentials I want its components to be instantiated under "Local Service" account. When I create a server application with a wizard on Win2k3 it offers to choose under whom to instantiate components - "Local Service" is one of choices. But on WinXP "Local Service" is not offered at all in the wizard. When I open the "Identity" tab of the COM+ application under Win2k3 there'a a handful of choises, "Local Service" included, and I can select any of them. But on WinXP the same "Identity" tab only offers "Interactive user". What does this difference depend on? Does it depend on the system or on something else?

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  • Mechanics of reasoning during programming interviews

    - by user129506
    This is not the usual "I don't want to write code during an interview", in this question the assumption is that I need to write code during an interview (think about the level of rewriting the quicksort or mergesort from scratch) I know how the algorithm work or I have a basic idea of how I should start working from there, i.e. I don't remember the algorithm by heart I noticed that even on a whiteboard, I always end up writing bugged code or code that doesn't compile. If there's a typo, whatever I usually live with that.. but when there's a crash due to some uncaught particular case I end up losing confidence in my skills. I realize that perhaps interviewers might want to look at how I write code and/or how I solve problems rather than proof-compiling my whiteboard code, but I'd like to ask how should I approach the above problem in mental terms, i.e. what mental steps should I follow when writing code for an interview with the two bullet points above. There must be a unique and agreed series of steps I should follow to avoid getting stuck/caught into particular exception cases (limit cases) that might end up wasting my time and my energies rather than focusing on the overall algorithm for the general case. I hope I made my point clear

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  • Is ICCP certification valuable for a programming career?

    - by HerbN
    In looking at various professional societies the AITP lead me indirectly to the ICCP Certified Computer Programmer certification (and others from the ICCP). I had never heard of this program, but both the AITP and, more significantly to me, ACM have members on the ICCP board. Is anyone familiar with this certification? The webpage isn't confidence inspiring to be honest, but looking at it the program seems aimed at those in the Fortune 1000 internal software world. Anyone ICCP certified in some way? Does it make a positive different for a career in software development?

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