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  • How computers display raw, low-level text and graphics

    - by panic
    My ever-growing interest in computers is making me ask deeper questions, that we don't seem to have to ask anymore. Our computers, at boot, as far as I understand it, are in text mode, in which a character can be displayed using the software interrupt 0x10 when AH=0x0e. We've all seen the famous booting font that always looks the same, regardless of what computer is booting. So, how on earth do computers output graphics at the lowest level, say, below the OS? And also, surely graphics aren't outputted a pixel at a time using software interrupts, as that sounds very slow? Is there a standard that defines basic outputting of vertices, polygons, fonts, etc. (below OpenGL for example, which OpenGL might use)? What makes me ask is why OS' can often be fine without official drivers installed; how do they do that? Apologies if my assumptions are incorrect. I would be very grateful for elaboration on these topics!

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  • Good Slideshow DVD programs?

    - by AlexMax
    I want to burn a bunch of pictures to a DVD slideshow. However, Google reveals that there are tons of software programs that claim to do this. Can anyone recommend one of them without me having to download 20 of them only to discover half don't work and the other half are free trials to $29 software that doesn't work either? The only one which I have tried out so far is DVD Slideshow GUI, which is simply a mess of programs. It was free, but it crashed a whole bunch, spit errors at me when i tried to preview and never worked when I tried to export the slideshow to mpg.

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  • Multiple vulnerabilities in Firefox web browser

    - by chandan
    CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2011-3062 Numeric Errors vulnerability 6.8 Firefox web browser Solaris 11 11/11 SRU 9.5 Solaris 10 SPARC: 145080-11 X86: 145081-10 CVE-2012-0467 Denial of service (DoS) vulnerability 10.0 CVE-2012-0468 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-0469 Resource Management Errors vulnerability 10.0 CVE-2012-0470 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 CVE-2012-0471 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-0473 Numeric Errors vulnerability 5.0 CVE-2012-0474 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-0477 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability 4.3 CVE-2012-0478 Permissions, Privileges, and Access Controls vulnerability 9.3 CVE-2012-0479 Identity spoofing vulnerability 4.3 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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  • Advice and resources on collaborative environments

    - by Tjaart
    I need some advice on collaborative software environments. More specifically, I am looking for books and reference materials that can aid me in understanding team and code structures and the interactions thereof. In other words books, blogs or white papers explaining: Different strategies for structuring teams that share common code between each other but have distinct individual functions? To summarise my question I would like to know what would be a good source of knowledge if I were to set up teams in an organisation that shared code but each unit still remained autonomous. I have done some research on this subject and explored: code review tools, distributed VCS, continuous integration tools, Unit testing automation. The tough part about implementing these tools are to determine where a good place would be to start, which tools are low hanging fruit, which tools or methods provide higher success rates. If someone asks me about code quality reference I point them to Code Complete. I am looking for an equivalent guide on software team structures and tools to make this equation work better. I realise that this question is quite vague but it arose as "we need to share code between teams without breaking each others stuff and causing management headaches and reams of red tape" The answer is definitely not simple and requires changes on many levels, hence the question. If the question is too vague please vote to close or delete. I would accept any good starting point as an answer.

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  • Why is the pavucontrol level indicator jumping while nothing plays?

    - by EnterTheLiquidToasterFamily
    The level indicator in the screenshot does jump around even if nothing is playing. The indicator also reasonably represents sound levels when music is playing. I dont have any mediaservers running or noisy browsertabs open. Also no mic connected. When I turn the volume to max in software and on the amp, there is no noise from the speakers at all. Played music is loud and not distorted. Hardware: Realtek ALC889 over optical audio connector to a generic amp. Software: Debian Wheezy with latest backport kernel 3.14 (same thing on wheezy 3.2 stock), wheezy pulseaudio, xfce session, a custom asound.conf that enables pulseaudio to push sound over optical port. /etc/asound.conf pcm.a52 { @args [CARD] @args.CARD { type string } type rate slave { pcm { type a52 bitrate 448 channels 6 card $CARD } rate 48000 #required somehow, otherwise nothing happens in PulseAudio } }

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  • How to automatically take daily HDD backup?

    - by user13107
    I think my HDD might have crashed. I don't want to lose data if this happens again. I have dual boot Windows/Ubuntu system. What is the best way to backup data and other software settings in Ubuntu? I don't care much about Windows partition, important stuff is in Ubuntu. I have 1 Tb external HDD (laptop HDD is of 500 gb total). One way would be to run rsync every day (or via cronjob) to backup everything to external HDD. What might be better ways of achieving this (backup)? Also are instant backup software recommended? Are there any disadvantages of instant backup as opposed to daily rsync?

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  • The SQL Server Setup Portal

    - by BuckWoody
    One of the tasks that takes a long time for the data professional is setting up SQL Server. No, it isn’t that difficult to slide a DVD in a drive and click “Setup” but the overall process of planning the hardware and software environment, making decisions for high-availability, security and dozens of other choices can make the process more difficult. And then, of course, there are the inevitable issues that arise. Microsoft supports literally hundreds and even thousands of combinations of hardware and software drivers from vendors you’ve never even heard of. Making all of that work together is a small miracle, so things are bound to arise that you need to deal with. So, to help you out, we’ve designed a new “SQL Server Setup Portal”. It’s a one-stop-shop for everything you need to know about planning and setting up SQL Server. As time goes on you’ll see even more content added. There are already whitepapers, videos, and multiple places to search on everything from topic names to error codes. So go check it out – and if you have to do a lot of SQL Server Setups – and especially if you don’t – bookmark it as a favorite! Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Quoted on MVA Voices

    A couple of weeks ago, I received an email from the Dean of Microsoft Virtual Academy (MVA) asking for permission to quote a statement I made during a jump start. Following is an excerpt from that request: "Dear Jochen, I would like to thank you for providing insight as to how the Advanced HTML5 Jump Start helped you improve your skills.  I mentioned this to the leadership team at MVA, and they were pleased to hear this so much that they would like your permission to use a quote from your email to me on the MVA website." Of course! I really enjoy those free MVA jump starts - live and later the recordings. Actually, I prefer the live ones because you really have a chance to communicate with the MVA studio team and the experts in the chat. Luckily, the live stream is provided in two quality levels and with the remote situation of Mauritius, I always have to switch to 'Standard Quality' to avoid too much buffering and to enjoy a smooth experience. Later on, the recordings are great for rehearsal and repetition of the material. You can download and watch them offline while commuting, or what I'm going to do in the future - to use them as material for a study group within the Mauritius Software Craftsmanship Community (MSCC). For sure, this is going to be a lot of fun, and I'm looking forward to work with other Windows-oriented software craftsmen in order to 'push' them towards Microsoft certifications. By chance, I discovered today that my quote has been published in the MVA Voices section: Click to enlarge: Screenshot of Microsoft Virtual Academy web site taken on 04.07.2013 Thank you very much, MVA - this made my day and I'm very happy to be quoted.

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  • Which version management design methodology to be used in a Dependent System nodes?

    - by actiononmail
    This is my first question so please indicate if my question is too vague and not understandable. My question is more related to High Level Design. We have a system (specifically an ATCA Chassis) configured in a Star Topology, having Master Node (MN) and other sub-ordinate nodes(SN). All nodes are connected via Ethernet and shall run on Linux OS with other proprietary applications. I have to build a recovery Framework Design so that any software entity, whether its Linux, Ramdisk or application can be rollback to previous good versions if something bad happens. Thus I think of maintaining a State Version Matrix over MN, where each State(1,2....n) represents Good Kernel, Ramdisk and application versions for each SN. It may happen that one SN version can dependent on other SN's version. Please see following diagram:- So I am in dilemma whether to use Package Management Methodology used by Debian Distributions (Like Ubuntu) or GIT repository methodology; in order to do a Rollback to previous good versions on either one SN or on all the dependent SNs. The method should also be easier for upgrading SNs along with MNs. Some of the features which I am trying to achieve:- 1) Upgrade of even single software entity is achievable without hindering others. 2) Dependency checks must be done before applying rollback or upgrade on each of the SN 3) User Prompt should be given in case dependency fails.If User still go for rollback, all the SNs should get notification to rollback there own releases (if required). 4) The binaries should be distributed on SNs accordingly so that recovery process is faster; rather fetching every time from MN. 5) Release Patches from developer for bug fixes, feature enhancement can be applied on running system. 6) Each version can be easily tracked and distinguishable. Thanks

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  • A Better Way to Plan, Execute and Manage Enterprise Architecture

    - by JuergenKress
    IT Strategies from Oracle is an authorized library of guidelines and reference architectures that will help you better plan, execute, and manage your enterprise architecture and IT initiatives. The IT Strategies from Oracle library offers two types of best practice documents: practitioner guides containing pragmatic advice and approaches, and reference architectures containing the proven technology patterns to jumpstart your initiative. The IT Strategies from Oracle library can help you establish a reliable set of principles and standards to guide your use of Oracle technology. We will expand this library over time across all of Oracle's technologies. Today, you can access: Overview documents providing an introduction to all the resources available in the library and best practices maturity models Oracle Reference Architectures covering the application infrastructure foundation, management and monitoring, security, software engineering, service-oriented integration, service orientation, user interaction, engineered systems, and a master glossary. Enterprise Technology Strategies for Service-Oriented Architecture offering practitioner guides on creating a SOA roadmap, frameworks for governance, determining ROI, identifying services, software engineering, and white papers. Enterprise Technology Strategies for Event-Driven Architecture offering practitioner guides on creating an EDA roadmap and reference architectures on an EDA foundation and EDA infrastructure. Enterprise Technology Strategies for Business Process Management including practitioner guides on creating a BPM roadmap, business process engineering, governance, and reference architectures on a BPM foundation and BPM infrastructure. Enterprise Technology Strategies for Cloud Computing including reference architectures on a Cloud foundation and Cloud infrastructure. Enterprise Technology Strategies for Business Analytics includes a practitioner guide for creating a BA roadmap, and reference architectures for a BA foundation and BA infrastructure. Get the Oracle Enterprise Architecture content here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: Architecture,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Mac OS X: Change $PATH from within python script

    - by Eye of Hell
    I have a bunch of python scripts. One of them installs software (subversion) that requires it's path to be added to $PATH. After it is installed, I want the next script to use the software. If I run export PATH=/opt/subversion/bin:$PATH in bash between the first and second script, all is ok. But if I add os.system( 'export PATH=/opt/subversion/bin:$PATH' ) as the last command of the first script (that installs subversion), $PATH remains unaltered after it exits. Is it any way to change $PATH from within python script so it will remain changed after the script finishes (inside single bash session, of course, I know about /etc/profile).

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  • Blatant copyright theft

    - by Tom Gullen
    Found a user on the forum trying to solicit business for his website, a good user reported it and I checked the website out. Firstly and most dangerously it's attempting to sell our original software, which is open source. Our open source software is around 15mb big and he's serving a 50mb download and trying to sell it for $20. He's also stolen our CSS/images/site design in general which is all custom built. I attempted to open reasonable discussion with him, and he responded promptly saying he would remove offending materials if he could just have 3 days to sort it out which I accepted. I'm not sure what his plan was because everything on that site is offending material. Anyway he messaged back saying the site was offline, and it was, but it went back online shortly afterwards. It's pretty sickening that someone is selling open source work as their own, (the site about us page references him as the sole developer etc etc, it's unbelievable to read it). I want to shut it down, what are my options? I'm going to contact his domain registrar, web host, and Paypal (that's how he's selling the program). Any other ideas?

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  • Simplest vpn server for linux

    - by Ian R.
    I'm supposed to setup a vpn server on our linux machine for some of our employees who travel a lot. I have 10 ip's on that server so I'm looking into a simple software (not openvpn which is a hell to digest). The software should be able to allow connections from any os type (linux, mac, windows). It should also be able to allow connections via username/password. I would like to assign 1 ip to each client. Any ideas, names?

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  • fingerprint-gui can not recognize my upek reader (147e:1002)

    - by ymfoi
    I've got a new laptop which is Lenove's E420s. And I have encountered a big problem that I can't make the fingerprint reader work properly. I've also tried fingerprint-gui. But unfortunately, it's told that "No Device Found". Here is my screenshot: http://ge.tt/98Xg2WD/v/0 It's said that 147e:1002 is supported by fingerprint-gui on the official website. So, I'm curious about the situation. Anybody knows? P.S: I'm using gentoo, but I think this problem may not have anything to do with distribution since I compiled the source from official site.

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  • Google Chrome giving error 138

    - by gsingh2011
    Google Chrome randomly stopped working one day and is giving me this error: Google Chrome is having trouble accessing the network. This may be because your firewall or antivirus software wrongly thinks that Google Chrome is an intruder on your computer and is blocking it from connecting to the Internet. Here are some suggestions: Add Google Chrome as a permitted programme in your firewall or antivirus software's settings. If it is already a permitted programme, try deleting it from the list of permitted programmes and adding it again. Error 138 (net::ERR_NETWORK_ACCESS_DENIED): Unable to access the network. I didn't make any changes to my firewall settings between the time it was working and when it wasn't working. I'm using the default Windows Firewall. I added Chrome to the allowed programs and restarted, but that didn't fix the error. I even reinstalled Chrome completely and that didn't work either. Any help would be appreciated. EDIT: I forgot to mention that Firefox and IE9 work fine.

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  • How to measure startup time and order of Windows services on boot?

    - by djangofan
    I am not asking how to measure server startup time here. I am wondering if anyone knows of a tool that can measure and show a graph of the startup time and order of all the windows services during system startup. I saw a software program shown on my local Portland news last week that does this but I am unable to remember what it was called or anything else about it. All I remember is that it was a "tech" news story to help computer users with their computers. So, I know the software exists and I am trying to find it.

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  • Examples of applications where messages are guaranteed to turn up imediately

    - by James Hay
    I'm trying to find an example to show where data is sent from somewhere, whether manually or automatically, and is received IMMEDIATELY by the recipient, (doesn't matter whether we're talking mobile, desktop or whatever). An even better example would be where there were multiple recipients for the same message. It doesn't matter what the data is or the context it's used in, only the immediacy of receiving it. I was thinking that there might be some example in finance and the stock markets, but I haven't been able to find any through googling. IM clients are a great example of this and I think I'm basically looking for examples of applications that communicate over sockets. If anyone works on applications of this nature or knows of particular implementations, can you give me a quick run down of the use case and if it's commercial software the name of the software. This is all basically for research purposes so doesn't have to be particularly detailed. If anyone can help, thanks.

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  • Is it illegal to forward copyrighted content? [closed]

    - by Mike
    Ok, this may be a strange question, but let's start: If I illegally download a movie (for example...) from a HTTP Web Server, there are many routers between me and the Web Server which are forwarding the data to my PC. As I understand, the owners of the routers are not legally responsible for the data they forward (please correct if I'm wrong). What if I would install a client of a peer-to-peer network on my PC and this client (peer) would forward copyrighted content received from peers to other peers? Hope someone understand what I mean ;-) Any answer or comment would be highly appreciated. Mike Update 1: I'm asking this question because I want to develop a p2p-application and try to figure out how to prevent illegal content sharing/distribution (if forwarding content is really illegal...) Update 2: What if the data forwarded by my peer is encrypted, so I'm technically not able to read and check it?

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  • What's the best encoding for videos on the Zune?

    - by Will
    I've got videos I want to encode to put on the zune. Have the encoding software (using Expression Encoder), but I'm not sure about what I should transcode to. I used the settings built into EE for the Zune, but the sync software still shows these videos are being converted before sync. I already have to get these videos into an acceptable format, so encoding twice is a waste of time and space. What I'm looking for is a video codec, audio codec, bitrate, WxH, and anything else I need to encode a video so it goes straight from my disk onto my Zune without re-encoding.

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  • Is it possible to develop apps with Kendo UI to submit to iOS App Store?

    - by Farshid
    The number of platforms I have to develops apps for is increasing and It brings me lots of stress to learn new technologies for each target platform. I found out that Telerik's Kendo UI is very good to build websites that look and feel native on mobile platforms (e.g. iOS and Android). My question is, is it possible to build HTML5 apps to deploy them on iTunes App Store and Google Play? Please note that I am eager to know the possibility of creating apps (complete apps bundled in standard format of Apple and Google for distribution in their respective mobile app markets) but not websites.

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  • I don't program in my spare time. Does that make me a bad developer?

    - by not-my-real-name
    A lot of blogs and advice on the web seem to suggest that in order to become a great developer, doing just your day job is not enough. For example, you should contribute to open source projects in your spare time, write smartphone apps, etc. In fact a lot of this advice seems to suggest that if you don't love programming enough to do it all day long then you're probably in the wrong career. That doesn't ring true with me. I enjoy my work, but when I come home from the office I'm not in the mood to jump straight back onto the computer and start coding away until bedtime. I only have a certain number of hours free time each day, and I'd rather spend them on other hobbies, seeing friends or going outside than in front of the computer. I do get a kick out of programming, and do hack around outside of work occasionally. I'm committed to my personal development and spend time reading tech blogs and books as a way to keep learning and becoming better. But that doesn't extend so far as to my wanting to use all my spare time for coding. Does this mean I'm not a 'true' software developer at heart? Is it possible to become a good software developer without doing extra outside your job? I'd be very interested to hear what you think.

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  • if a usb pen drive has 64349 cylinders, is it damaged?

    - by Andrew S
    I have a 4Gb USB pen drive that I'm trying to format with FAT32. When I run fdisk, it gives me this message: The number of cylinders for this disk is set to 64349. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) I've tried deleting the partition table, creating new partitions, etc, but they never work. Sometimes I can write to the drive the first time I use it after formatting it, but then it becomes read-only in both Windows and Linux. I've tried this on multiple computers. Am I doing something wrong, or is the drive reporting an incorrect number of cylinders? Is the drive itself likely to be corrupted, and is there anyway to fix this under Windows Vista or Linux? Thanks

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  • Access device with local ip over internet

    - by Joe Perrin
    I apologize up front if this is the wrong place to post this question. It seemed like the best fit. I have a device which is connected to my local network which has an IP of 192.168.1.10 from my router. Additionally I use a Windows 7 machine that runs some software called DirectUpdate which allows me to resolve the local IP of the Windows 7 machine (192.168.1.5) to be accessible to the internet via my domain (example.com) - Basic dynamic DNS updating. I'd like to access the device from example.com. I am unsure how to do this as I don't have any way to install DirectUpdate (or any software) on the device to make the device available to the internet. Any insight here would be appreciated. Thank you.

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  • How to "paint" the data layer of a CD using a CD drive?

    - by Jens
    I am looking for software to "paint" geometric shapes, dots or lines on the data layer of a writable CD (or DVD) using a standard drive. These do not have to be visible to the naked eye; I'd try to abuse the small dot size on the CD for some scientific measurements. I am aware of the "LightScribe" feature of some drives and that is not what I am looking for. Most of the software available is of course limited to write music or data, on does not offer the low-level "place a dot at this radius, this angle"-functionality. Is there something out there for me?

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