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  • Precising definition of programming paradigm

    - by Kazark
    Wikipedia defines programming paradigm thus: a fundamental style of computer programming which is echoed in the descriptive text of the paradigms tag on this site. I find this a disappointing definition. Anyone who knows the words programming and paradigm could do about that well without knowing anything else about it. There are many styles of computer programming at many level of abstraction; within any given programming paradigm, multiple styles are possible. For example, Bob Martin says in Clean Code (13), Consider this book a description of the Object Mentor School of Clean Code. The techniques and teachings within are the way that we practice our art. We are willing to claim that if you follow these teachings, you will enjoy the benefits that we have enjoyed, and you will learn to write code that is clean and professional. But don't make the mistake of thinking that we are somehow "right" in any absolute sense. Thus Bob Martin is not claiming to have the correct style of Object-Oriented programming, even though he, if anyone, might have some claim to doing so. But even within his school of programming, we might have different styles of formatting the code (K&R, etc). There are many styles of programming at many levels. Sp how can we define programming paradigm rigorously, to distinguish it from other categories of programming styles? Fundamental is somewhat helpful, but not specific. How can we define the phrase in a way that will communicate more than the separate meanings of each of the two words—in other words, how can we define it in a way that will provide additional meaning for someone who speaks English but isn't familiar with a variety of paradigms?

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  • Would you use (a dialect of) LISP for a real-world application? Where and why?

    - by Anto
    LISP (and dialects such as Scheme, Common LISP and Clojure) haven't gained much industry support even though they are quite decent programming languages. (At the moment though it seems like they are gaining some traction). Now, this is not directly related to the question, which is would you use a LISP dialect for a production program? What kind of program and why? Usages of the kind of being integrated into some other code (e.g. C) are included as well, but note that it is what you mean in your answer. Broad concepts are preferred but specific applications are okey as well.

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  • "Bootmgr is missing...." Upon reboot [closed]

    - by Gabe
    Possible Duplicate: Install/running ubuntu on extarnal HDD with a windows laptop? Ill take you through the steps I did. Sorry if this question has already been resolved, I'm new to Ubuntu and forums in general. I have 2 internal HDDs in my computer, both with Win7. One HDD is my mothers, the other is mine. I did this because she didn't want my games on her computer, and my PCs motherboard took a crap on me, so I set up a dual boot. I also have an external HDD. This is what I am trying to install Ubuntu 12.04 on. I formatted the drive by right clicking it, then selecting "Format". It is now in NTSF format. I downloaded the Windows installer, ran it, and selected "I:/" (my externl hdd) as the install location. The download and installation ran smoothly, and it gave me the reboot prompt. I selected "Reboot now" and my PC rebooted. I was then interrupted by the "Bootmgr is missing. Press CTRL + ALT + DEL TO REBOOT" message. NOTE: I would like to use my HDD for a FULL Ubuntu installation, not the Live (i think thats what its called). I want all my files and settings from Ubuntu saved to the External drive as if it was my only drive. If you need more information just ask. Any help would be appreciated. Thanks in advance.

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  • Upgrade to ubuntu 13.04 from 12.04 with iso image

    - by Digvijay Yadav
    I have ubuntu 12.04 installed on my system. I want to upgrade it to ubuntu 13.04. I want to do this upgrade using an iso image of ubuntu 13.04. I tried this Solution But it didn't work for me. After running these command I didn't get any alerts about updating. Also I don't understand the gksu part of the solution. Here are the steps I tried: sudo mount -t iso9660 -o loop PATH/TO/ISO /cdrom then sudo /cdrom/cdromupgrade Read more: http://linuxpoison.blogspot.tw/2011/06/how-to-upgrade-ubuntu-using-alternate.html#ixzz2SFMqlOPx I also wanted to know, If I can do this using a networked computer. By this I mean the iso file is on some other computer. Thank you.

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  • How does operating system software maintains time clocks?

    - by Neeraj
    Hi everyone, This may sound a bit less relevant but I couldn't think of a better place to ask this question. Now consider this situation, you install an OS on your system, set the timezone and time, do some stuff and turn it off. (Note that there is no power going in to the computer). Now next time (say after some hours or days) you turn it on again, and you see the updated time. How is this possible even when my computer is not connected to the internet and was consuming no power during the period it was down.(Is there some kind of hardware hack?) please clarify!

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  • Bridging a Windows 7 and Ubuntu dual boot inside an OS

    - by matsko
    I have Windows 7 and Ubuntu installed on my local PC. They're both installed on separate partitions on the same machine, and when the computer boots up the user is given the option to choose which one they want to boot use as the OS. This all works fine, but I want to use Windows 7 instead of Ubuntu, I am required to restart the computer and boot up the other OS. Is is possible to use an "inline" tool that will allow to change between both OSs as if they were windows in Windows 7? Which tool would that be? Does anyone know of anything else than Parallels? Also are there any free tools that would do this?. Many Thanks.

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  • Using PC or Mac keyboard as Bluetooth keyboard for iPad?

    - by Kevin Hakanson
    I would like to use my computer keyboard (USB) as a Bluetooth keyboard for my iPad, while I am using it with my computer. I was hoping their was an "app for that" that I could run on either Mac or Windows. I imagine how it would work: It would have to emulate a Bluetooth keyboard, and be able to pair with the iPad. Then, when you give focus to this app, it transmits keystrokes from your built-in keyboard out over the Bluetooth connection. Seems simple, but I can't seem to find anything definitive on Google. Has anybody done this? I figure this is cheaper that buying a Apple iPad Keyboard Dock or a Apple Wireless Keyboard from the Apple Store. Also, it's one less item on my desk, which gets cluttered enough with one keyboard.

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  • What is Peformance Monitor telling me when my page faults / second are high?

    - by David Robison
    I have a Windows 7 x64 computer that is having performance issues. After some investigation, I have discovered that the page faults / second on it, as reported by Performance Monitor, are really high. Everything else seems to be normal. Resource Monitor reports no hard faults and lots of available memory. Is this a potential cause for problems, or is it a red herring? If it is something that could be causing problems, what should I do next to figure out what is causing it? Here is a screen shot of the Performance Monitor. Notice that the average page faults / second is 75,887. On another computer that does not have problems, this number is closer to 3,000. Here is a screen shot of the Resource Monitor, sorted by hard faults / second, which is currently 0 for all processes.

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  • Webcast Series: Accelerate Business-Critical Database Deployments with Oracle Optimized Solutions

    - by ferhat
    Join us for this two-part Webcast series and learn how to safely consolidate business-critical databases and deliver quantifiable benefits to the business: Save up to 75% in operational and acquisition costs Save millions of dollars consolidating legacy infrastructure Leverage best practices from thousands of customer environments Increase end user productivity with 75% faster time to operations and 4x faster throughput   The Oracle Optimized Solution for Oracle Database  provides extensive guidelines for architecting and deploying complete database solutions that deliver superior performance and availability while minimizing cost and risk. Oracle’s world-class engineering teams work together to define these optimal architectures using Oracle's powerful SPARC M-Series and SPARC T-Series servers together with Oracle Solaris and Oracle's SAN, NAS, and flash-based storage to run the industry-leading Oracle Database. Quite simply, the Oracle Optimized Solution for Oracle Database makes it easier for you to deliver and manage business critical database environments that are fast, secure and cost-effective. Available On-Demand PART 1: Why Architecture Matters When Deploying Business-Critical Databases PART 2: How To Consolidate Databases Using Oracle Optimized Solutions   Presented by: Lawrence McIntosh, Principal Enterprise Architect, Oracle Optimized Solutions Ken Kutzer, Principal Product Manager, Infrastructure Solutions, Oracle  

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  • New Procurement Report for Transportation Sourcing

    - by John Murphy
    Welcome to our fourth annual transportation procurement benchmark report. American Shipper, in partnership with the Council of Supply Chain Management Professionals (CSCMP) and the Retail Industry Leaders Association (RILA), surveyed roughly 275 transportation buyers and sellers on procurement practices, processes, technologies and results. Some key findings: • Manual, spreadsheet-based procurement processes remain the most prevalent among transportation buyers, with 42 percent of the total • Another 25 percent of respondents use a hybrid platform, which presumably means these buyers are using spreadsheets for at least one mode and/or geography • Only 23 percent of buyers are using a completely systems-based approach of some kind • Shippers were in a holding pattern with regards to investment in procurement systems the past year • Roughly three-quarters of survey respondents report that transportation spend has increased in 2012, although the pace has declined slightly from last year’s increases • Nearly every survey respondent purchases multiple modes of transportation • The number of respondents with plans to address technology to support the procurement process has increased in 2012. About one quarter of respondents who do not have a system report they have a budget for this investment in the next two years.

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  • Virus blocking incoming connections ?

    - by Benoît
    Hello, on my windows 2003 server, all incoming connections are dropped. I can see them getting in using Wireshark, but even a single ping from another computer fails. All locally initiated connection work fine (i'm asking from the server). This server is the DC/DHCP/DNS/File server, so computer clients are in the dark. I've run varius antivirus and removal tools without any luck. The Windows Firewall is disabled. I'm wild-guessing at some virus/worm. How can i check why these incoming ICMP/TCP SYN/etc are dropped ? Anyone has any knowledge about such situations ? Thanks.

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  • Best Performing Remote Desktop Software for WAN

    - by Dave
    I've been tasked with connecting a computer in one of our branches in the midlands to one in south wales. We have been using windows remote desktop but find it too slow. The ADSL on the computer were connecting to is about 6Mb Download and 470Kb Upload so not majorly fast. That connection is also shared with about 10 other internet users. I'm trying to find out if the is any remote desktopn connecting software that performs better than the microsoft remote desktop software. Or, would i be better using a KVM over IP? I've looked into connecting the offices through BT's fiber optic but at £21k a year rental were trying to find a cheaper solution! Any help would be great. Thanks, Dave,

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  • GRUB Error after Deleting Linux Partition

    - by Nironan12
    I was dual-booting with Windows 7 and Windows Vista each taking up half of my hard drive. In Windows 7 I used Easeus Partition Manager to shrink my Windows 7 volume 8GB. On the unallocated space, I installed Linux Mint 8 RC1. After a little bit of playing around with it, I booted in Windows 7, used EPM again and deleted the 8GB Linux partition. I then extended Windows 7 on the 8GB. After restarting my computer, all I get is a black screen and this: GRUB loading. error: no such partition grub rescue> I do not have a Windows 7 disk nor does my computer come with Startup Repair. What do I do?

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  • Windows Server 2003 W3SVC Failing, Brute Force attack possibly the cause

    - by Roaders
    This week my website has disappeared twice for no apparent reason. I logged onto my server (Windows Server 2003 Service Pack 2) and restarted the World Web Publishing service, website still down. I tried restarting a few other services like DNS and Cold Fusion and the website was still down. In the end I restarted the server and the website reappeared. Last night the website went down again. This time I logged on and looked at the event log. SCARY STUFF! There were hundreds of these: Event Type: Information Event Source: TermService Event Category: None Event ID: 1012 Date: 30/01/2012 Time: 15:25:12 User: N/A Computer: SERVER51338 Description: Remote session from client name a exceeded the maximum allowed failed logon attempts. The session was forcibly terminated. At a frequency of around 3 -5 a minute. At about the time my website died there was one of these: Event Type: Information Event Source: W3SVC Event Category: None Event ID: 1074 Date: 30/01/2012 Time: 19:36:14 User: N/A Computer: SERVER51338 Description: A worker process with process id of '6308' serving application pool 'DefaultAppPool' has requested a recycle because the worker process reached its allowed processing time limit. Which is obviously what killed the web service. There were then a few of these: Event Type: Error Event Source: TermDD Event Category: None Event ID: 50 Date: 30/01/2012 Time: 20:32:51 User: N/A Computer: SERVER51338 Description: The RDP protocol component "DATA ENCRYPTION" detected an error in the protocol stream and has disconnected the client. Data: 0000: 00 00 04 00 02 00 52 00 ......R. 0008: 00 00 00 00 32 00 0a c0 ....2..À 0010: 00 00 00 00 32 00 0a c0 ....2..À 0018: 00 00 00 00 00 00 00 00 ........ 0020: 00 00 00 00 00 00 00 00 ........ 0028: 92 01 00 00 ... With no more of the first error type. I am concerned that someone is trying to brute force their way into my server. I have disabled all the accounts apart from the IIS ones and Administrator (which I have renamed). I have also changed the password to an even more secure one. I don't know why this brute force attack caused the webservice to stop and I don't know why restarting the service didn't fix the problem. What should I do to make sure my server is secure and what should I do to make sure the webserver doesn't go down any more? Thanks.

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  • Prevent Ultrabay HDD from ejecting on sleep

    - by Bryce Evans
    I have a lenovo T430s thinkpad with a small SSD primary drive and 500gb ultrabay drive. When I put the computer to sleep and then return, I get the message titled "problem ejecting < drive name " "Windows can't stop your 'Generic volume' device because a program is still using it." This pop up is very annoying every time every time I use the computer. I don't want to disable write caching [D:Hardware[drive]policiesquick removal] because I want best performance and never remove the drive. Any ways to avoid this pop up?

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  • Know which Apps to Remove From MSConfig with this Startup Applications List

    - by Mit Naik
    Just found userfull information on Internet and thought it would help all of users. This list of startup applications is a really handy resource for cleaning up msconfig entries that have overtaken old computers. It catalogs tons of different startup programs, what they do, and which ones you should delete, leave running, or decide based on the program's usefulness. It even has a nice search box so you can search through the tens of thousands of entries. Hit the link below to check it out, and if your relatives' computer is especially broken, be sure to check out our guide to fixing your relatives' terrible computer. http://www.sysinfo.org/startuplist.php Please update the list here if you got any other tools or sites which can be help full to others

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  • Looking for suggestions: becoming a hireable, young programmer [closed]

    - by Dan
    I am a 17 year old Java programmer that has filled the last year with learning all of the ins and outs of Java - Using Eclipse, and the help of a friend of the family (a Java programming architect for some company), I have learned everything from serializing objects, basic networking, generics, reflection, multi-threading, code optimization and efficiency & some concurrency safety - built my own proxy class, and nowadays, I answer questions on Project Euler. I am seeking some suggestions though on where I go next, or where I go from here to get a job in programming. I dedicate at least an hour every day to coding, sometimes literally, the entire day, and I really have come to love the process. I just started reading Effective Java (v2), and learning Scala (as I see often, possibly the Java replacement) I will be going to college for Computer Science next year - and taking AP computer science this year (however, I took a practice exam and got an 87, only need a 60to70 to pass, so no need to study for it too much) -- I was wondering if getting the SE 7 OCA and OCP would help me in trying to get a programming job. I looked around and most people have said online that an OCA/OCP are practically useless, but, at my age do they make me any more credible? More or less, what would you recommend to get a job in programming these days - or distinguish yourself from the crowd? I have enough time and dedication to learn another language, or anything really. Thank you very much.

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  • OpenVPN to connect remote networks, peer to peer instead of client/server possible?

    - by John Robertson
    I would like to connect two remote networks using OpenVPN. I am very new to this we are very small and don't have a sys/network admin. What are the possible setups to have both networks both live on a common LAN via OpenVPN? I would prefer to use the UDP peer model rather than client/server. Is there a way to set that up instead? I can't see how because no computer on existing network A has a routable address to any computer on existing network B and vice versa.

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  • ERP/CRM Systems. Desktop Based ? Web based?

    - by Parhs
    Hello guys... I have seen 2-3 ERPs in action. I am wondering what is better. Desktop based application or webbased displayed on a browser. My first expirience was with a web based ERP when i was 14 years old.. It was web based and terribly slow... For most simple task you had to do lots of clicks... no keyboard support ..... Pages took ages to load. Last year i worked for migrating to a newer computer some old terminal based cobol application. The computer that worked till today and still has no problem was from 1993. The user interface ofcourse was textbased.. The speed that guys placed orders was amazing! just typing the name of the customer , then 5-10 keys to add a product to order.... Comparing to this ERP the page for placing orders Link (click sales orders) seems terribly slow to add a product... No keyboard shortcut works to save what you added and generally i believe you need 4 times more time to place an order compared to the text interface... Having to use both mouse and keyboard for this task is BAD and sadistic... So how can tek heck these people ever use a system like that ??? So in the long run desktop application seems the only way... Ofcourse browsers support shortcuts but the way to overide the defaults that browsers uses isnt cross compatible... That is a hudge problem. Finnaly, if we MUST/forced use cloud in near future what about keyboard shortcuts?? I feel confused... I have seen converters of desktop applications to browser applications but are SLOW as hell... The question is what about user friendliness?What kind of application would you use?

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  • Looking for Fiddler2 help. connection to gateway refused...just got rid of a virus?

    - by john mackey
    I use Fiddler2 for facebook game items, and it's been a great success. I accessed a website to download some dat files I needed. I think it was eshare, ziddu or megaupload, one of those. Anyway, even before the rar file had downloaded, I got this weird green shield in the bottom right hand corner of my computer. It said a Trojan was trying to access my computer, or something to that extent. It prompted me to click the shield to begin anti-virus scanning. It turns out this rogue program is called Antivirus System Pro and is pretty hard to get rid of. After discovering the rogue program, I tried using Fiddler and got the following error: [Fiddler] Connection to Gateway failed. Exception Text: No connection could be made because the target machine actively refused it 127.0.0.1:5555 I ended up purchasing SpyDoctor + Antivirus, which I'm told is designed specifically for getting rid of these types of programs. Anyway, I did a quick-scan last night with spydoctor and malware bytes. Malware picked up 2 files, and Spydoctor found 4. Most were insignificant, but it did find a worm called Worm.Alcra.F, which was labeled high-priority. I don’t know if that’s the Anti-Virus Pro or not, but SpyDoctor said it got rid of all of those successfully. I tried to run Fiddler again before leaving home, but was still getting the "gateway failed" error. Im using the newest version of firefox. When I initially set up the Fiddler 2.2.8.6, I couldn’t get it to run at first, so I found this faq on the internet that said I needed to go through ToolsOptionsSettings and set up an HTTP Proxy to 127.0.0.1 and my Port to 8888. Once I set that up and downloaded this fiddler helper as a firefox add-on, it worked fine. When I turn on fiddler, it automatically takes my proxy setting from no proxy (default) to the 127.0.0.1 with Port 8888 set up. It worked fine until my computer detected this virus. Anyway, hopefully I've given you sufficient information to offer me your best advice here. Like I said, Spydoctor says the bad stuff is gone, so maybe the rogue program made some type of change in my fiddler that I could just reset or uncheck or something like that? Or will I need to completely remove fiddler and those dat files and rar files I downloaded? Any help would be greatly appreciated. Thanks for your time.

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  • Temp profile used when User logs in

    - by TJ
    One of my users logged into his computer, Windows XP, last night only to be meet with an error message that it could not load his profile and he will be logged in using a temporary profile. Typically when this happens I shut the machine down and restart and the correct profile will load when they log in again. Not this time. In the user profile options under computer-properties-Advanced-user profiles it show that there are three profiles with his name. Two are the exact same size with the same modified date (5/5/10) and the other is what I would expect size wise for a new profile with a modified date of today. What are my options to restore his profile?

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  • Rhythmbox - put a playlist on my iPod

    - by GorillaSandwich
    I have an old iPod nano and currently use iTunes in Windows to management. However, I'm trying to switch to Ubuntu. So far, iPod management is one major holdup. Besides being unable to easily manage podcasts, I also don't see a way to create a playlist and put it on my iPod. I can create a playlist on the computer in Rhythmbox, but I can't drag and drop it onto the iPod. I can create a playlist on the iPod itself, put I can't drag and drop songs from my library into it. If I right-click the songs, I can add them to playlists on the computer, but not on the iPod. How can I create a playlist of music in Rhythmbox and sync it to my iPod?

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  • Can't bring NAT to work

    - by user31738
    Hello, I bought a D-link DIR-300 wireless router and i can't bring NAT to work, i have an ssh and http service i need to forward to the internet. My connection is as follows: I have an ADSL connection, i'm using a ADSL ethernet modem connected and working, it doesnt let me put it on bridge mode. I have my router connected to my adsl modem through ethernet, it gets its ip through DHCP (and i'ts always the same) I have a desktop computer running linux with apache and openssh configured and working, it has fixed ip. I configured the NAT in the modem forwarding port 22 from the router ip to the internet. In the router i setup NAT forwarding port 22 from the desktop computer fixed ip to out there. This setup already worked with a fonera i had before, can anyone help me with this or tell me what kind of tests do i need to do? How can i test if the router is forwarding ports correctly before the modem?

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  • Were the first assemblers written in machine code?

    - by The111
    I am reading the book The Elements of Computing Systems: Building a Modern Computer from First Principles, which contains projects encompassing the build of a computer from boolean gates all the way to high level applications (in that order). The current project I'm working on is writing an assembler using a high level language of my choice, to translate from Hack assembly code to Hack machine code (Hack is the name of the hardware platform built in the previous chapters). Although the hardware has all been built in a simulator, I have tried to pretend that I am really constructing each level using only the tools available to me at that point in the real process. That said, it got me thinking. Using a high level language to write my assembler is certainly convenient, but for the very first assembler ever written (i.e. in history), wouldn't it need to be written in machine code, since that's all that existed at the time? And a correlated question... how about today? If a brand new CPU architecture comes out, with a brand new instruction set, and a brand new assembly syntax, how would the assembler be constructed? I'm assuming you could still use an existing high level language to generate binaries for the assembler program, since if you know the syntax of both the assembly and machine languages for your new platform, then the task of writing the assembler is really just a text analysis task and is not inherently related to that platform (i.e. needing to be written in that platform's machine language)... which is the very reason I am able to "cheat" while writing my Hack assembler in 2012, and use some preexisting high level language to help me out.

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  • The Art of Motion Capture [Video]

    - by Jason Fitzpatrick
    Motion capture is the process of using cameras and actors wearing special suits in order to build realistic and fluid foundations for CGI characters. Watch this informative video to see how the process works. Courtesy of the video series Good Job, a series focused on interesting jobs within the film and video game industry, we see how martial artists wearing special suits dotted with LEDs generate the basic framework for the fighters in the popular video game series Tekken. [via Neatorama] HTG Explains: Why Linux Doesn’t Need Defragmenting How to Convert News Feeds to Ebooks with Calibre How To Customize Your Wallpaper with Google Image Searches, RSS Feeds, and More

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