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  • Apple Patches Pwn2own OS Threat

    After a security researcher demonstrated a security flaw in Apple's Safari browser running on its Snow Leopard operating system, the company has issued a fix, providing clues as to the nature of the threat.

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  • What Does My BIOS Do After Booting?

    - by Jason Fitzpatrick
    Once your computer finishes the boot process and you’re firmly inside the operating system buzzing along, is there anything left for the BIOS to do? Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. How To Create a Customized Windows 7 Installation Disc With Integrated Updates How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using?

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  • Information About Windows Reseller Web Hosting

    Windows reseller web hosting services are hosting services provided to the user completely dedicated to the Windows Operating System. The hosting can be managed effortlessly with navigation, control,... [Author: John Anthony - Web Design and Development - March 23, 2010]

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  • What common term could be used for Web Services, Windows Services etc

    - by Shamim Hafiz
    My question is primarily concerned with making a CV. Normally under the Language section we list the individual programming Languages we've used. For example, C#, C++, PHP. Under the Platform section we can list the various operating systems and devices. Under which category would Web Services/Windows Services fall? My point is these are not platforms by themselves and surely they aren't a language. Is there any common term that can be used to describe these?

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  • How to Change the Default Save Location for Office 2013

    - by Taylor Gibb
    The new version of Office comes complete with SkyDrive integration, but sadly SkyDrive is the default save location. Here’s how to make your Office apps save documents to your PC by default instead of SkyDrive. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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  • 52 Sci-Fi and Video-Game Weapons: Can You ID Them All?

    - by Jason Fitzpatrick
    Swords, blasters, shields, and more populate this visual roundup of sci-fi, comic book, video game, and pop culture weapons. Can you name them all? Hit up the link below for the full-resolution and closeup pictures. Famous Weapons [via Blastr] How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It

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  • Desktop Fun: Foggy Mornings Wallpaper Collection Series 2

    - by Asian Angel
    All is calm and quiet as the sun peeks over the horizon, lighting up the fog-filled world of nature surrounding you. Wander through these wonderful morning mists on your desktop with the second in our series of Foggy Mornings Wallpaper collections. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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  • Insight into GNU/Linux boot process

    <b>Musing with GNU/Linux:</b> "In this document we will take a look at the different aspects of the boot process. Such as the BIOS which is the first code which runs, the boot loaders that can load different operating systems, pass arguments to the kernel, load it from different sources like a hard drive, a flash, and network & finally the kernel itself."

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  • Linux AI robot baby dinosaur

    <b>Handle With Linux:</b> "Watch this: a Linux powered baby dinosaur, with a arm processor heart. The robot runs Live OS. An embedded, linux based operating system which features a custom programming language, giving the possibility to interact with the robot on the programming level"

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  • Microsoft Plays the Open Source Software Game

    OS Roundup: Microsoft appears to have woken up to the fact that free open-source Office clones may be the thin end of a very slippery wedge. Its response is loud and clear, as it tells the world, when it comes to operating systems Microsoft intends to be a formidable competitor for some time to come.

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  • Microsoft Plays the Open Source Software Game

    OS Roundup: Microsoft appears to have woken up to the fact that free open-source Office clones may be the thin end of a very slippery wedge. Its response is loud and clear, as it tells the world, when it comes to operating systems Microsoft intends to be a formidable competitor for some time to come.

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  • Does 3d modeling software *choice used during asset creation affect performance at runtime

    - by user134143
    Does software used to create 3d assets (for game development specifically) have an impact on the efficiency of the program? In other words, is it possible to reduce the operating footprint of an application merely by utilizing alternative development software during production of 3d assets? If you use two different applications to create a 3 dimensional image of a box, can one of them result in better performance if aspects of the image are identical? I am attempting to get the information I need without causing unnecessary debate over specific software choice.

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  • Unable to boot ubuntu 11.10 from external usb drive

    - by user45006
    I'm new to Ubuntu (and actually all things Linux) as of this morning, so please excuse any stupid mistakes I may be making. I recently bought an external hard drive for my newly built PC (that is running windows 7 if it matters). I would like to install Ubuntu onto the external drive and boot from there. I downloaded Ubuntu 11.10 and made a bootable cd, unplugged my internal HDDs, plugged in the external drive, installed Ubuntu 11.10 on the external drive via the installer, and replugged in my internal HDDs. Then I set my bios boot order to: Boot from USB-HDD - Boot from Hard Disk - Boot from CD/DVD. Now when I restart I get the message "Starting Operating System..." (or something like that, I forget exactly what it says) that lingers on the screen for a moment and then windows starts. Any idea what the problem may be? ~Relevant info~ BIOS version: Award Software International, Inc. F2, 2/22/2011 Ubuntu Version: 11.10 External Hard Drive: Western Digital My Passport Essential 500GB Portable Hard Drive (Black) ~Things I've already tried~ 1) Unplug internal HDDs so that only external drive was plugged in via usb. Same thing happened only obviously my BIOS could not detect any hard drives besides the external one. When booting received error "Could not detect operating system" 2) Formatted external hard drive and re installed. It didn't make a difference, however interestingly when I booted from cd the ubuntu installer said it detected ubuntu 11.10 on the external hard drive. 3) Within BIOS I've messed around with every boot order combo I could think of both in the "Hard Disk boot order" screen and the "Boot order" screen. I'm a little confused of why there are two screens for this. 4) Held F12 during startup which opens (what I think is) the one time boot screen and it gave me the options "Hard Drive", "cd/dvd", "USB-FDD", "USB-cdrom", "USB-HDD", and "USB-something else I can't remember what it was". I tried all of them, but the same thing as before happened each time. ~References~ I noticed several people on askubuntu have tried to do something similar if not the exact same. In fact, I even found a post that pretty much outlines step by step exactly what I did... only their's worked. /jealous. Linky: Install Ubuntu or Kubuntu on a External USB Drive I'm willing to try a different version of ubuntu - it's not like my heart is set on 11.10, but it's a pain to open my case and unplug my internal hard drives so I'd prefer not to do this unless someone is reasonably confident it'll work. Thank you for all of your help in advance! I'm really looking forward to exploring Ubuntu!

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  • Is there a pedagogical game engine?

    - by K.G.
    I'm looking for a book, website, or other resource that gives modern 3D game engines the same treatment as Operating Systems: Design and Implementation gave operating systems. I have read Jason Gregory's Game Engine Architecture, which I enjoyed. However, by intent the author treated components of the architecture as atomic units, whereas what I'm interested in is the plumbing between those units that makes a coherent whole out of ideally loosely coupled parts. In books such as these, one usually reads that "that's academic," but that's the point! I have also read Julian Gold's Object-oriented Game Development, which likewise was good, but I feel is beginning to show its age. Since even mobile platforms these days are multicore and have fast video memory, those kinds of things (concurrency, display item buffering) would ideally be covered. There are other resources, such as the Doom 3 source code, which is highly instructive for its being a shipped product. The problem with those is as follows: float Q_rsqrt( float number ) { long i; float x2, y; const float threehalfs = 1.5F; x2 = number * 0.5F; y = number; i = * ( long * ) &y; // evil floating point bit level hacking i = 0x5f3759df - ( i >> 1 ); // what the f***? y = * ( float * ) &i; y = y * ( threehalfs - ( x2 * y * y ) ); // 1st iteration // y = y * ( threehalfs - ( x2 * y * y ) ); // 2nd iteration, this can be removed return y; } To wit, while brilliant, this kind of source requires more enlightenment than I can usually muster upon first read. In summary, here's my white whale: For an adult reader with experience in programming. I wish I could save all the trees killed by every. Single. Game Programming book ever devoting the first two chapters to "Now just what is a variable anyway?" In C or C++, very preferably C++. Languages that are more concise are fantastic for teaching, except for when what you want to learn is how to cope with a verbose language. There is also the benefit of the guardrails that C++ doesn't provide, such as garbage collection. Platform agnostic. I'm sincerely afraid that this book is out there and it's Visual C++/DirectX oriented. I'm a Linux guy, and I'd do what it takes, but I would very much like to be able to use OpenGL. Thanks for everything! Before anyone gets on my case about it, Fast inverse square root was from Quake III Arena, not Doom 3!

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  • Take the Oracle Database Assessment for Midsize Businesses and Enterprise Departments

    - by David Swanger
    Midsize businesses and enterprise departments often face the dual challenge of having to ensure 24x7 availability while operating with limited resources.  Take this assessment to see how your organization stacks up in terms of simplicity, reliability, and affordability.  And find out how the Oracle Database Appliance helps midsize businesses balance the challenge of high availability and limited resources by simplifying deployment, maintenance, and support of high-availability database workloads. Visit this link to take the assessment: http://www.oracle.com/us/media/survey/index-dbapp-1518659.html

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  • How are video card\graphics drivers written exactly? [closed]

    - by Bigyellow Bastion
    I was thinking, since I want an application layer for my operating system, how or what would be the best way to write, or better understand how to write, my own graphics device drivers or software to enable application layered software to request data through my graphics system (I.e. windows, icons, mouse pointers). I don't need every little detail, I'd just like some possible insight on the procedure one may accomplish this feat in, perhaps the best way to understand the interaction between the graphics GUI rendering software to the hardware interaction directly, and the application software requesting the graphics driver itself.

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  • Top Exastack ISV Headlines: Volante Technologies

    - by Javier Puerta
    Volante Achieves Oracle Exalogic Optimized, Oracle Exadata Ready, Oracle SuperCluster Ready, Oracle Solaris Ready, Oracle Linux Ready and Oracle VM Status. Volante Suite is a suite of modular tools for integration and management of financial data. Used today by major financial institutions, exchanges and industry utilities around the world, Volante enables users to rapidly build data integration solutions among market data feeds, applications and external partners. Volante finds Exalogic is strong fit for addressing scalability and operating in the most challenging financial services environments. Read more here.

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  • Install Ubuntu or Kubuntu on a External USB Drive

    - by rihatum
    Hi All, I have a few external hard drives (SSDs and Platters (SATA), is this possible that I can install Kubuntu 10.10 x64 or Ubuntu 10.10 x64 onto one of these external hard drives? My System supports booting off a usb, it will just give me a learning playground without spoiling my existing operating environment. I know I can install as Virtual machines, but installing U/Kubuntu on a External HDD and booting off it would be easier. Will be grateful for your insights....and steps to do so. Thanks

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  • C-states and P-states : confounding factors for benchmarking

    - by Dave
    I was recently looking into a performance issue in the java.util.concurrent (JUC) fork-join pool framework related to particularly long latencies when trying to wake (unpark) threads in the pool. Eventually I tracked the issue down to the power & scaling governor and idle-state policies on x86. Briefly, P-states refer to the set of clock rates (speeds) at which a processor can run. C-states reflect the possible idle states. The deeper the C-state (higher numerical values) the less power the processor will draw, but the longer it takes the processor to respond and exit that sleep state on the next idle to non-idle transition. In some cases the latency can be worse than 100 microseconds. C0 is normal execution state, and P0 is "full speed" with higher Pn values reflecting reduced clock rates. C-states are P-states are orthogonal, although P-states only have meaning at C0. You could also think of the states as occupying a spectrum as follows : P0, P1, P2, Pn, C1, C2, ... Cn, where all the P-states are at C0. Our fork-join framework was calling unpark() to wake a thread from the pool, and that thread was being dispatched onto a processor at deep C-state, so we were observing rather impressive latencies between the time of the unpark and the time the thread actually resumed and was able to accept work. (I originally thought we were seeing situations where the wakee was preempting the waker, but that wasn't the case. I'll save that topic for a future blog entry). It's also worth pointing out that higher P-state values draw less power and there's usually some latency in ramping up the clock (P-states) in response to offered load. The issue of C-states and P-states isn't new and has been described at length elsewhere, but it may be new to Java programmers, adding a new confounding factor to benchmarking methodologies and procedures. To get stable results I'd recommend running at C0 and P0, particularly for server-side applications. As appropriate, disabling "turbo" mode may also be prudent. But it also makes sense to run with the system defaults to understand if your application exhibits any performance sensitivity to power management policies. The operating system power management sub-system typically control the P-state and C-states based on current and recent load. The scaling governor manages P-states. Operating systems often use adaptive policies that try to avoid deep C-states for some period if recent deep idle episodes proved to be very short and futile. This helps make the system more responsive under bursty or otherwise irregular load. But it also means the system is stateful and exhibits a memory effect, which can further complicate benchmarking. Forcing C0 + P0 should avoid this issue.

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