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• Computer Engineer in CS Interview

  - by blasteye

  As a Computer Engineering student, while in school I've primarily dealt with C, Matlab, and VHDL. On my own though, i learned a bit about OOP (Polymorphism, inheritance, encapsulation), and have done quite a bit of web development using JavaScript/PHP/Node.js While at coding interviews I've be asked academia CS questions such as "abstract vs interface". The problem is that I didn't know the official terminology, but I have dealt with this type of programming decisions/concepts. Could anyone recommend a good resource for me to learn these academia CS terms?

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• The Benefits of Computer Games

  In earlier days, kids were chastised for spending too much time in front of a television. Nowadays, children are glued to the computer, playing games. Seeing concentration on their faces and determin... [Author: Anna Peacocks - Computers and Internet - April 27, 2010]

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• Botnet Takes Control of Penn State Computer

  A university computer holding the social security numbers and other critical data for 15,800 students was communicating with a botnet's command-and-control center for months.

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• How To Speed Up Your Slow Computer

  Personal computers are an amazing invention. Computers make our jobs easier and provide interesting things for us to do at home or on the road. But over time, daily usage slows down a computer';s perf... [Author: Daniel T. Driver - Computers and Internet - May 09, 2010]

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• C# .Net Utility suggestion for personal computer laptop

  - by alliswell

  Hi all, I want know what are utilities you have created for your personal computer or laptop for day to day purpose. Like few may have created task manager or windows service for scheduler, or tool to get latest feeds from SO. Need your experiences, which made your day to day task easier. And I don't want to know any third party(except Commercial) tools. I will not commercialize this ;-), but I want to know how I can utilize my skills to create application for personal use.

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• wearable linux computer, makes you feel like cap'n crunch

  <b>Handle With Linux:</b> "This is the 1D/2D scanner imager available as an extension to the wearable w200 rugged Linux computer. Finally the Linux equivalent of the cap'n crunch secret decoder ring."

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• Rugged railroad computer runs Linux

  <b>LinuxDevices:</b> "Kontron is readying an Intel Atom Z530-based box computer designed for rugged railway applications. The MicroSpace MPCX28R Railway Box PC is protected for railway use with EN50155 certification, TX compliance, extended temperature support, 1.5kV isolated power, and M12 connectors for Fast Ethernet, USB, and power..."

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• Computer is running slow with Ubuntu

  - by Bart

  Why my computer runs too slow when I install Ubuntu or any other Linux (Debian works better than other distros), but with windows works fine...? My configuration is: Processor: Intel Celeron CPU 1.70GHz Graphics: Ati Radeon 9250 128 MB HD: Western Digital 120GB RAM: 2GB DDR1 Motherboard: MSI (MS-6566) Is there anything unsuported by Ubuntu, or any Linux. If so, is there any way to get it work fine (visual effects are not important to me). What do I need to do?

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• How to make computer interface with circuit

  - by light.hammer

  I understand that I can build a circuit that will do whatever I like (ex: a simple circuit that will turn on a motor to open the blinds or something), and I can write a program that will automate my computer/mac however I like (ex: open this program at this time, or with this input and create a new file, ect). My question is, how can I interface the two? Is there an easy DIY or cheap commercial (or not cheap but functional) USB plug that will turn on/off from computer commands? I'm basically looking for some sort of on/off switch I can script/applescript. How would you even approach this problem, would I have to write my own driver some where along the way?

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• CA Siteminder Installation - "super user could not be saved in the policy store"

  - by jhuang

  Roadblock during CA SiteMinder Policy Server installation. I've moved past various other LDAP credential related errors, but haven't been able to find any information on this one, whatsoever. What do I need to do in order to move past this error? Windows XP installation, 32 bit.

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• php-cgi cpu usage is super high

  - by Ryan Thompson

  I am getting constantly high and wildly fluctuating CPU usage % for php-cgi commands as seen via "top" on my Centos server.. I have a server density account and it seems that this is a common trend: User - PID - CPU % - MEM % - VSZ - RSS - TT - Stat - Started - Time - Command 500 - 6389 - 22.4 - 3 - 271136 - 32380 - ? - S - 20:26 - 0:40 - /usr/bin/php-cgi Seems there are about 6 or so of those records in my processes list at any given check-in. Any ideas what's causing this? I have fast_cgi installed and the module is loading.. Not sure why it isn't handling this though. Any help would be greatly appreciated! Ryan

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• Clean up infected computer from viruses

  - by ripper234

  I have a computer which had AVG Free installed from day one. After several months of operation, it starts detecting viruses and trojans all the time. Besides running a full scan, what should I do to clean the computer? Should I install another anti-virus or anti-malware tool (can it help?), or once viruses infect a system the only real solution is a clean format? (Lately I've heard of viruses that burn themselves in the BIOS, so a clean format might not always work ... how common is this technique? Should I burn a fresh BIOS as well?)

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• RAMDiskVE keeps causing computer to freeze

  - by Steph

  I found this in the Event Viewer logs: The description for Event ID 11 from source RAMDiskVE cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. Which doesn't say much. The details don't reveal much more: Failed to read configuration information from registry. 0000000002002C00000000000B0007C0000000000000000000000000000000000000000000000000 So my question is, what is RAMDiskVE and what device is it for? Basically I'm trying to rule out hardware but I have no idea what's failing...

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• Computer won't recognize second WD internal HD

  - by music man

  I installed a Western Digital Caviar Green 1TB internal hard drive, and want to use it for back up. My BIOS recognizes the device, but it is not recognized in Disk Management. It also is not recognized in "my computer." When I right-click my C drivepropertieshardware, I see it listed. First the drive was plugged into SATA port 1 on my motherboard, then I tried it in port 3, where it remains. I've been working on this for hours. Any help would be appreciated. More info Hard drive model #:WD10EADS-65M2B1 Windows 7 Home Premium 64 bit Service Pack 1 Computer:HP Model p6404y, Processor:AMD phenom II x4 820 2.80GHZ 8 gigs RAM

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• Sudden restart now chrome kills computer

  - by Kai

  My computer suddenly restart itself the other day and when it came back up so much as clicking on the icon for Google Chrome freezes everything. I uninstalled Chrome and tried reinstalling is but as soon as the download finished, the computer froze again. I tried installing an earlier version (about a week prior) and it froze differently but still froze. I am also getting notification that the battery needs to be replaced. At the moment I am running it sans battery and using firefox and everything seems to be fine. I have a HP dv4t running Windows 7.

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• Computer and internet use on a boat?

  - by dlamblin

  Let's assume that I seriously would like to be able to use my computer as easily and as carefreely while on a boat as I do while at home. In short, if I were on a boat for extended periods, such as two weeks at a time and occasionally over a few days out of port (this would be a 2 person sailing vessel), what would my options be for power, durability, and of course, internet access? I want more than just email, as I will likely keep doing a tad of development, and will be looking at google earth from time to time. I am already assuming that we're going with some kind of laptop, maybe even a macbook pro 12". I personally feel that netbooks are underpowered. And the last computer that I got a boat-friendly rating for was a ZX Spectrum, which was before the internet, and was likely due to it's 12vdc-happiness.

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• Computer is totally crashed

  - by Napster

  my computer kept restarting on its own at random times varying from 1 minutes, to 20 minutes(then goind in a constant restart loop every ~10 seconds). I had to turn it off and wait minutes or hours before attempting to restarting to go further in the boot process. Now, it just does not turn on. I posted this before: Computer crashes every 2 to 10 minutes but I did not have the time to check the temperature. I don't want to pay to get it checked up, but I want to know what is wrong. Is the processor fried? Thank you

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• Using using a DVI instead of a VGA increase computer screen monitor resolution

  - by Jessica M.

  This is for a computer screen. Both my video card and computer screen have DVI ports on them but I'm using a VGA. I'm wondering if there would be a difference if i switch from VGA to DVI. My current resolution is 1920x1080 with the VGA cord. will my resolution increase if i switch to a DVI? Are there any advantage of switching from VGA to DVI? If there will be a difference if i switch, I've read there are 5 different type of DVI cables. how do I know which one to buy?

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• What's Your Favorite Harmless Computer Practical Joke?

  - by Ben Griswold

  A couple of months ago, I returned from lunch to find that typing any key launched a random application. As I always lock my machine before walking away from it, my first thought was that a co-worker was playing a practical joke on me. As it turned out, the cause was random computer wonkiness. But just in case there's a need :), what's your favorite harmless computer practical joke? For example, would you alter host file entries to direct google.com to a random site or would you put tape over the optical sensor of a co-worker’s mouse?

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• Best wireless mouse/keyboard for conference room computer?

  - by Brett

  What would be the best wireless mouse and keyboard for a conference room computer that is used by multiple employees throughout the day? We have one in there right now that is really cheap that doesn't work half the time. This is due to the fact that the batteries run down when left on... and it seems to have problems losing its pairing with the computer dongle. Any ideas on something that won't have battery problems, is very reliable and somewhat tough? Price isn't too much of an issue, but I'd still prefer to get something for less than $100 just in case someone walks away with it.

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• Where does power consumption go in a computer?

  - by Johannes Rössel

  Today we had a weird discussion over lunch: What exactly causes power consumption in a computer, particularly in the CPU? Figures you usually see indicate that only a percentage (albeit a large one) of the power consumption ends up in heat. However, what exactly does happen with the rest? A CPU isn't (anymore) a device that mechanically moves parts, emits light or uses other ways of transforming energy. Conservation of energy dictates that all energy going in has to go out somewhere and for something like a CPU I seriously can't imagine that output being anything but heat. Us being computer science instead of electrical engineering students certainly didn't help in accurately answering the question.

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• Computer wont POST after power outage

  - by aaron

  I had just turned my computer on and windows was loading when the power in my neighborhood went out. Normally, when I turn my computer on, the video card fan spins up, then slows down, POST and windows boots. Now, after the blackout, the video card fan spins fast and wont stop. Nothing is displayed on the monitor. The monitor does not detect that the video card is sending it signals, it just stays on standby. No POST or beep codes. This is what I have tried so far: My motherboard has 2 PCI express slots and I tried plugging the video card into both of them but that didn't fix anything. I have replaced the power supply, that didn't fix anything. I cleared the CMOS, that didn't fix anything. Does anyone have any idea of what could be wrong? Thanks!

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• Cloud Computing - Multiple Physical Computers, One Logical Computer

  - by Koobz

  I know that you can set up multiple virtual machines per physical computer. I'm wondering if it's possible to make multiple physical computers behave as one logical unit? Fundamentally the way I imagine it working is that you can throw 10 computers into a facility one day. You've got one client that requires the equivalent of two computers worth, and 100 others that eat up the remaining 8. As demands change you're just reallocating logical resources, maybe the 2 computer client now requires a third physical system. You just add it to the cloud, and don't worry about sharding the database, or migrating data over to a new server. Can it work this way? If yes, why would anyone ever do things like partition their database servers anymore? Just add more computing resources. You scale horizontally with the hardware, but your server appears to scale vertically. There's no need to modify your application's infrastructure to support multiple databases etc.

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• Screenshot before windows starts: without another computer?

  - by Nano8Blazex

  I'm pretty sure that this must have been asked before, but haven't found a duplicate question, thus I shall ask again... Is it possible to take a screenshot of my computer before the OS boots up WITHOUT an external computer or virtualization software like VMWare?? e.g. at the BIOS, or the "Windows is Loading" screen, even at the login screen? Is it possible to take screenshots of BSODs as well? EDIT: I'm using a desktop pc running Windows 7 Ultimate in a home environment. Thanks.

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• External hard drive doesn't appear in Computer

  - by Thomas Clayson

  I cannot work out why this is happening. I have an external hard drive (which is an old laptop hard drive with an IDE to USB adapter). Plugging it into my computer powers it up. It spins correctly and the lights on the adapter flash normally. Uninstalling from hardware manager and plugging it back in causes Windows to "install new software", and it says it has installed properly. In Disk Management it comes up in the bottom part as Disk 2 with the right size (~60 GB), but not in the top half. There are three empty drives in the top half. They don't have titles or drive letters. Right clicking them bring up slightly varying context menus, but all with the options disabled. Here is a picture of my Disk Management screen: How do I make this drive show up in My Computer? I need to format it and use it as an external hard drive.

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