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Monday, January 24, 2011

Making Sense of your Credit Card Number

Making Sense of your Credit Card Number: "

You credit card number may look like a random string of 16 digits that’s unique in the world but those digits reveal a little more than you think.


For instance, the first digit of the card represents the category of industry which issued your credit card. American Express is in the travel category and cards issued by them have 3 as the first digit. If you have VISA or MasterCard, your card’s first digit should be either 4 or 5 as they are from the banking and financial industry.


The first six digits of your credit card number identify the institution that issued the card to you. VISA cards follow the series 4xx while MasterCard uses 51-55 as the prefix.


You may even verify if a given credit card number is valid or not using simple addition. The following visual illustration courtesy Mint.com will help you understand more about the anatomy of your credit card.


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This article, titled Making Sense of your Credit Card Number, was originally published at Digital Inspiration under Credit Card, Infographics, Offbeat.

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Friday, November 27, 2009

Thursday, November 26, 2009

How To Run Google Chrome OS From A USB Drive [Windows]

How To Run Google Chrome OS From A USB Drive [Windows]: "

Just a few days ago, Google announced the release of the Chrome OS source code. Within less than 24 hours, the web was littered with disk images for running the new OS on virtual machines such as VMWare and VirtualBox. I even managed to put together my own Google Chrome OS download in the form of a complete VirtualBox appliance. I’m pleased to announce that I’ve taken it a step further, and now you can easily try it on your own computer from a USB thumb drive.


Before You Get Started


Before you decide to download Chrome OS, there are probably a few things I should tell you about it. It is in the very early stages of development, so there is still a lot of stuff that doesn’t work. In fact, it may not work for you at all.


You should also be made aware that this operating system is very simplistic by design, as it is intended for use on netbook computers. By definition, a netbook is a small and inexpensive laptop intended for very casual use such as web browsing and simple office tasks. When you launch Chrome OS, pretty much all you get is a web browser. Don’t be surprised if you go through all this and say to yourself, “I did all that work just to log into a freakin’ browser?”


Requirements


First of all, you will of course need a USB drive you can use to try it out. The disk image is 2,988,442,112 bytes, so you’ll probably need a 4GB thumb drive to be able to use it. If you have any files on your USB drive that you need, be sure to back them up to a safe place because this will wipe all the data from your USB drive. Consider yourself warned.


You will also need a computer that allows booting from a USB drive. You’ll need to instruct your computer’s BIOS to boot from the USB drive instead of the hard drive like it normally does. When you boot up your computer, it should provide you with information as to how to bring up a boot menu. On some machines it is the F8 key and others the F12 key or some other key.


If it all scrolls by too fast, some computers will allow you to pause the boot sequence by pressing the Pause key. That should give you all the time you need to read all that stuff on the screen to see if you can find out what the boot menu key is (if there is one). If you don’t see anything about a boot menu, you could also try editing your BIOS settings to boot from the USB drive. You may wish to consult your computer (or motherboard) manual on how to do this.


You will also need a little bit of luck. Chromium OS may or may not work on your computer hardware. I did successfully run it on two home-built frankenstein computers (with ASUS motherboards), but it did not successfully recognize the network adapter on my Dell laptop. All of this work may be for nothing, if it ends up that Chromium OS does not like your network adapter. Ah yes, I forgot to mention that you do also need a computer with a network adapter.


Finally, you’ll need to download the necessary files to put Chromium OS (that’s what the open source version of Google Chrome OS is called) onto your USB drive. I’ve packaged it all together in a torrent for you:


Download the Chromium OS for USB Torrent (Right-click and Save As)


You’ll need a good BitTorrent client like µTorrent to download it. If you’re new to BitTorrent, be sure to check out our Big Book of BitTorrent. You’ll learn more than you’ll ever want to know about it.


The torrent has a zip file that includes the disk image, as well as a Windows tool for putting the image onto a USB drive. The program you’ll use to create the Chrome OS USB boot disk is called Image Writer for Windows. It’s a nifty little tool for writing disk images, it’s free, and it’s open source.


You don’t need to download it seperately because I’ve already included it in the torrent. I just wanted to mention the good folks that developed the great application and send them some link love as well.


Installing Chromium OS to your USB Drive


Unzip chrome_os_usb.zip, and launch Win32DiskImager.exe. If you need a program to unzip the archive, you can download IZArc. If you get the warning below when you launch Image Writer, don’t sweat it. It’s looking for a floppy disk that’s not there.



Once you’ve got Image Writer running, click the folder icon and select the chrome_os.img file (it should be located in the same place where you extracted the zip file and launched Win32DiskImager.exe).



Connect your USB drive to your PC. If you have autorun enabled, you may want to wait a few seconds for your computer to do its thing. Just close whatever window may pop up. Next, click on the Device dropdown and select the drive letter that corresponds to your USB drive. Then, click Write and the program will commence writing the disk image to your USB drive.


Boot Up Chromium OS


You’re now ready to boot up Chromium OS! You can just leave the USB drive in your machine and reboot it. When the machine boots, press the boot menu key on your keyboard. Select your USB drive from the menu. In about 10 seconds or so, you should see the Chromium OS login screen.


Download Google Chrome OS


Login with chronos and password. This will log you in as a local user. Once you log in, you should see what looks almost just like the Google Chrome browser. If you click on the Chrome sphere in the upper left corner, you should see a Google Accounts login page telling you to log into Welcome. Log in with your Google Account.


chromium-os-welcome-login


If you do not see this page and you get a browser page that says it could not find the page requested, then unfortunately luck is not on your side. It means that Chromium OS doesn’t like your network adapter. You could still however try it out in a virtual machine if you so desire. If you were able to succesfully log in, you should then see the application page.


google chrome os download


As you can see, it is all in the cloud. All the applications you see on the app page bring up different webpages, and everything you do takes place within the browser. In my experience, although it did boot up relatively fast, the browser tends to run a bit slow and is a bit jumpy. Although the calculator and notepad launch properly in little popover windows, the apps don’t work and nothing loads into the windows at all.


The To-do List application doesn’t work either, and you get a Google.com account login page. Note, this is not the same as a Google Accounts login so you won’t be able to log in with your Google Account. The Google.com login page is only for Google employees. The Contacts application brings up a Google Talk gadget that doesn’t appear to work.


As I said earlier, a lot of the stuff isn’t working right. You’ll also see right at the top of the application page a message that says UI under development. Designs are subject to change.


All the other applications are simply links to webpages. One thing that I found rather amusing is that when you click on the Hotmail icon, it takes you to Gmail. However, the Yahoo! Mail icon does indeed bring you to the Yahoo! Mail login page. I suppose Google likes Yahoo! better than they do Microsoft.


So what do you think of Chrome OS? Do you think it is the netbook operating system of the future?

Google Image Swirl

Google Image Swirl: "Google released a new Google Labs experiment related to image search: Google Image Swirl. The service 'organizes image search results based on their visual and semantic similarities and presents them in an intuitive exploratory interface.'

Google Image Swirl clusters the top image search results for more than 200,000 queries and it lets you explore the clusters and the relation between images.

'Once you find the group of images you're interested in, you can click on the thumbnail and a cluster of images will 'swirl' into view. You can then further explore additional sub-groups within any cluster. Image Swirl expands on technologies developed for Similar Images and Picasa Face Recognition to discern how images should be grouped together and build hierarchies out of these groups. Each thumbnail on the initial results page represents an algorithmically-determined representative group of images with similar appearance and meaning. These aren't just the most relevant images — they are the most relevant groups of images,' explains Google.

Try queries like: jaguar, flowers, van Gogh and keep in mind that this is an early demo, so not all the queries will return results.


Google has two other visualization tools: 'wonder wheel' for exploring related searches and YouTube Warp, an interactive way to visualize related YouTube videos.


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Friday, August 28, 2009

3 Cool Addons to Replace The Mozilla Firefox Downloads Window

3 Cool Addons to Replace The Mozilla Firefox Downloads Window: "

ThumbnailThose who think that the Mozzilla Firefox downloads window is a bother please raise your hands. Good! There are quite a lot of us out here.


Heck, I am just kidding; but it’s true for me at least that sometimes the Firefox download pop-up is a bit too in my face. I like all downloads to be behind the scenes and unobtrusive. I wouldn’t like to do away with the Firefox browser for this minor ‘inconvenience’.


Thankfully, the gallery of Mozilla Firefox add-ons lets me do away with just the download window by giving me three options to choose from.


These three add-ons go a long way in improving the download job by replacing the default download window.


Download Statusbar (v 0.9.6.5)


Download Statusbar saves screen real estate by handing the download job to the goodish little status bar. It’s a wonder of coding that the 445KB add-on packs in a lot within its small size. The add-on can be configured as a separate status bar (Full Mode) or kept within the Firefox status bar (Mini mode).


mozzilla firefox downloads




This is just one option within its quiver of configuration settings. Some other features are…



  • Progress notifications give detailed information about downloads. Notifications can be switched on and off. Tooltip notifications add to instant feedback.

  • mozzilla firefox downloads


  • Retain, remove or trim download history.

  • Automatically continues downloads with the Firefox download manager, even if the main browser is closed. Pops up a confirmation alert when a download is halted or deleted.

  • Pause and resume downloads with a single click (i.e. if downloads are resumable).

  • mozzilla firefox downloads

  • Play a sound when the download finishes.

  • Run a finished download with a double click. Also one can open containing folder, visit source website, and rename the file.

  • Appearance of the download status bar can be customized. For instance, Speed Colors allow you to visually appreciate how each download is progressing.

  • mozilla firefox downloads

  • Virus scanning using default anti-virus can be configured to automatic or manual. File type filters for scans can be set.

  • mozilla firefox downloads

  • The add-on auto hides when not in use.

  • It is also available in 25 languages.


Download Statusbar is a recommended Firefox add-on. Alternatively, check it out at the Mozdev community site.

Custom Download Manager (v 2.1b90630)


mozilla firefox downloads

The custom part of this add-on is that the user can choose to open the download in a separate tab, sidebar or a fresh window. Though it’s not feature rich as Download Statusbar it introduces some control over the process. User friendly customization features include…


  • Decide the buttons, the look and their location with a few checkbox settings. Two important buttons which you can set are – Copy Download Link and Go to Download Page.

  • Decide on the behavior of the download manager window. For instance, close the download manager when done.

  • Set an alert for an exe file operation.

  • Enable/Disable virus scan for a completed file.


Custom Download Manager is compatible with Mac OS X, Windows and Linux.

Downloads in Tab (v 0.0.9)


firefox 3.0 doesn t complete downloads

If you like your download control to be sans any frills, then this add-on fits the need. Downloads in Tab moves the job from the pop-up windows to a regular tab. It’s actually just a tab version of the pop-up. The features are also limited to the regular tab controls…


  • Opens a tab automatically with a download and closes it when downloads are finished.

  • You can move the download tab to the background by choosing the only from menu setting in the Options panel of the add-on.

  • The download tab can be set to become the first tab of the browser window.


Downloads in Tab is an 18KB recommended download from Mozilla.

Karl has also taken us through 11 add-ons he can’t live without. You might want to check out his post for a brief mention of Download Statusbar and the nifty download manager/accelerator called Download Them All.

The three add-ons profiled here cover the gamut of download operations. From the bells and whistles of Download Statusbar to the plainness of Downloads in Tab. And somewhere in between we have the Custom Download Manager. We all have our requirements and thankfully a whole gallery of options to pick for them. Which is your pick of the heap?