How Torrent Works?

I’m just gonna explain the basics of how a torrent works with taking one of the comment torrent program: BitTorrent..

How BitTorrent Works

BitTorrent is a protocol that enables fast downloading of large files using minimum Internet bandwidth. It costs nothing to use and includes no spyware or pop-up advertising.

Unlike other download methods, BitTorrent maximizes transfer speed by gathering pieces of the file you want and downloading these pieces simultaneously from people who already have them. This process makes popular and very large files, such as videos and television programs, download much faster than is possible with other protocols.

To know why BitTorrent downloading is different from the regular downloading i’ll have to explain how the traditional client-server downloading works:

You open a Web page and click a link to download a file to your computer.

The Web browser software on your computer (the client) tells the server (a central computer that holds the Web page and the file you want to download) to transfer a copy of the file to your computer.

The transfer is handled by a protocol (a set of rules), such as FTP (File Transfer Protocol) or HTTP (HyperText Transfer Protocol).

The transfer speed is affected by a number of variables, including the type of protocol, the amount of traffic on the server and the number of other computers that are downloading the file. If the file is both large and popular, the demands on the server are great, and the download will be slow.

But the BitTorrent follows a different method of sharing files known as Peer-Peer Sharing

Peer-to-peer file sharing is different from traditional file downloading. In peer-to-peer sharing, you use asoftware program (rather than your Web browser) to locate computers that have the file you want. Because these are ordinary computers like yours, as opposed to servers, they are called peers. The process works like this:

• You run peer-to-peer file-sharing software (for example, a Gnutella program) on your computer and send out a request for the file you want to download.
• To locate the file, the software queries other computers that are connected to the Internet and running the file-sharing software.
• When the software finds a computer that has the file you want on its hard drive, the download begins.
• Others using the file-sharing software can obtain files they want from your computer’s hard drive.

The file-transfer load is distributed between the computers exchanging files, but file searches and transfers from your computer to others can cause bottlenecks. Some people download files and immediately disconnect without allowing others to obtain files from their system, which is called leeching. This limits the number of computers the software can search for the requested file.

Unlike some other peer-to-peer downloading methods, BitTorrent is a protocol that offloads some of the file tracking work to a central server (called a tracker). Another difference is that it uses a principal called tit-for-tat. This means that in order to receive files, you have to give them. This solves the problem of leeching — one of developer Bram Cohen‘s primary goals. With BitTorrent, the more files you share with others, the faster your downloads are. Finally, to make better use of available Internet bandwidth (the pipeline for data transmission), BitTorrent downloads different pieces of the file you want simultaneously from multiple computers.

• You open a Web page and click on a link for the file you want.
• BitTorrent client software communicates with a tracker to find other computers running BitTorrent that have the complete file (seed computers) and those with a portion of the file (peers that are usually in the process of downloading the file).
• The tracker identifies the swarm, which is the connected computers that have all of or a portion of the file and are in the process of sending or receiving it.
• The tracker helps the client software trade pieces of the file you want with other computers in the swarm. Your computer receives multiple pieces of the file simultaneously.
• If you continue to run the BitTorrent client software after your download is complete, others can receive .torrent files from your computer; your future download rates improve because you are ranked higher in the “tit-for-tat” system.

Downloading pieces of the file at the same time helps solve a common problem with other peer-to-peer download methods: Peers upload at a much slower rate than they download. By downloading multiple pieces at the same time, the overall speed is greatly improved. The more computers involved in the swarm, the faster the file transfer occurs because there are more sources of each piece of the file. For this reason, BitTorrent is especially useful for large, popular files.

Hope this article helped all those people who use all their hard-disk space to download stuffs all day long (like me ^_^) to know how torrents work and how they get their movies to their computer before the movie hits the screen..

Other Link: How IDM works?

How IDM works?

Hello Guys  ,

You Must have Wondered How IDM i.e. Internet Download Manager works.. as it gives higher speeds easily when compared to any other Download Managers such as Orbit Downloader, Smart Get,Download Add-ons and extensions from Mozilla Firefox,Google Chrome,Opera, Internet explorer, DAP [Download Accelerator Plus] etc etc.

  Its because the Number of threads/resume support of a link..

  Generally Download Managers, any . are useful only and only if The Download Link is Resume Supported.. Now What IDM does is that it converts a download link into maximum 16 Sixteen Different Small Small Parts And It requests these 16 parts at the same time to download server which has resume support… after all parts have been completely Downloaded it merges all these small-small parts into a single File and Shows up the Downloaded file to You .. But this method has a major drawback .. as the file downloaded by IDM is not continuous you cannot preview the file such as listen or watch MP3 or a video untill its Completely Downloaded Full i.e. 100% but in the case of Other Download Managers such as Smart Get/ DAP they also give multiple threads to the server but they do not break the files into parts.. so the file is continuously downloaded but due to unsplitting it gives a lesser speed compared to IDM.. however Download Managers have a Plus Point +. i.e. Even partly downloaded file such as 10-20% downloaded can be previewed means you can pause the download and check whether the mp3/video being downloaded is the one you require or not..

  So this is the story of Both The Download Managers selecting the Best Among them for your use is solely your Choice.. But For Me IDM is Simply the Best 

Other Link: How Torrent Works?

How to put a password on your internet browser (GOOGLE CHROME) - YouTube

How to put a password on your internet browser (GOOGLE CHROME) - YouTube:

'via Blog this'

Get Old Facebook chat here

Facebook, the biggest social network site updated many features like video call and now it changed its chat features as Sidebar chat, but its really annoying the users. We can’t see who are online, it will just show our few friends who are we interact most, it will be most irritating one for who have more number of friends. Its really simple script you have to install in your Browser to get your Old Facebook chat. Lets see how to get back our Favorite Facebook chat.


New Faceook chat

New Chat SlideBar

            

           To get Old Facebook chat Slide-bar select your Web

                                Browser given Below

Google Chrome

for Google chrome       Click Here 

Mozilla Fire-fox

For Mozilla FireFox        click Here 

Apple Safari

For Safari and Opera Click Here 

Old Facebook chat

Window 8 : Download window Developer Preview

Windows Developer Preview downloads

The Windows Developer Preview is a pre-beta version of Windows 8 for developers. These downloads nclude prerelease software that may change without notice. The software is provided as is, and you bear the risk of using it. It may not be stable, operate correctly or work the way the final version of the software will. It should not be used in a production environment. The features and functionality in the prerelease software may not appear in the final version. Some product features and functionality may require advanced or additional hardware, or installation of other software.

Windows Developer Preview with developer tools English, 64-bit (x64)

DOWNLOAD (4.8 GB)

Sha 1 hash - 6FE9352FB59F6D0789AF35D1001BD4E4E81E42AF

All of the following come on a disk image file (.iso). See below for installation instructions.

• 64-bit Windows Developer Preview
• Windows SDK for Metro style apps
• Microsoft Visual Studio 11 Express for Windows Developer Preview
• Microsoft Expression Blend 5 Developer Preview
• 28 Metro style apps including the BUILD Conference app

 Windows Developer Preview English, 64-bit (x64)

DOWNLOAD (3.6 GB)

Sha 1 hash – 79DBF235FD49F5C1C8F8C04E24BDE6E1D04DA1E9

Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 64-bit PC.

 Windows Developer Preview English, 32-bit (x86)

DOWNLOAD (2.8 GB)

Sha 1 hash - 4E0698BBABE01ED27582C9FC16AD21C4422913CC

Includes a disk image file (.iso) to install the Windows Developer Preview and Metro style apps on a 32-bit PC.

Live Connect

Sign up for the Live Connect technical preview.

Live Connect provides developers a set of controls and APIs that enable applications to integrate Single Sign On (SSO) with Windows Live ID and enable users to access information from SkyDrive, Hotmail, and Messenger.

System Requirements

Windows Developer Preview works great on the same hardware that powers Windows Vista and Windows 7:

• 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
• 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
• 16 GB available hard disk space (32-bit) or 20 GB (64-bit)
• DirectX 9 graphics device with WDDM 1.0 or higher driver
• Taking advantage of touch input requires a screen that supports multi-touch
• To run Metro style Apps, you need a screen resolution of 1024 X 768 or greater

Window 8, Microsoft’s Great Touch-based Hope

    

  What you’re going to notice about Windows 8 the first time you use it is its willingness to work with whatever you throw at it. Applications are able to communicate with one another for activities like, for example, sharing, in a way that certainly hasn't yet been perfected in any other system, a few mobile operating systems coming in close seconds. Creating an operating system that works with every bit of software your previous software was able to work with; that’s just smart business.

    Right out of the box you’ll be able to work with pen styluses, keyboards, and mice without trouble, this of course referring then specifically to the tablet-based implementation of the software. Of course it’s time and time again that it must be reminded that Windows 8 does not have different versions for Tablet and PC, instead its running on what’s essentially the exact same user interface wherever you’ve got it running. One UI to rule them all should Microsoft be saying, now it’s got us wondering if Windows Phone 8 (only on 7.5 at the moment) will be the great connector of systems, mobile and non-mobile, as Microsoft does very much appear to be pointing towards this week at their developer conference BUILD 2011.

    Moving, adjustable, and customizable panels make up your screens, each of them able to be made from a smaller bit of the other or made to represent an app that’s large and in charge. For example, you can make a panel that only connects to a single webpage, and if that webpage has an RSS feed, your panel will have a pretty good chance of showing you the feed as its updated on your Start Screen where it sits. Its pretty wild, to say the least.

    This entire Reimagining of Windows will be positive for Microsoft. Windows has been an operating system that’s had no significant changes made to it that the public made any sort of recognizable ruckus about for too many years now – it’s time for a change, and it’s exciting to see that this is it. While there’s always room for requests on improvements and real improvements as the system progresses, remember the following factoid: as of this week, 1,502 product changes have been made to Windows XP since Microsoft released it to manufacturing. This number comes from Microsoft tracking said number with its update service showing the wild, wild truth.

We can expect what appears to be quite a hearty effort coming from Microsoft here, along with some rather large hints that integration changes will continue to occur until Microsoft is a singularity.

Window 8: The End of Adobe Flash?

Microsoft appears to be taking a page out of Apple's play book saying it will dump plug-ins such as Adobe Flash from Internet Explorer 10 in Windows 8. Well, sort of.

You'll still be able to view content requiring plug-ins in Windows 8, but you'll have to switch to the old fashioned Windows desktop to see it. Users who prefer to remain in the touch-centric, Metro-style interface, however, will have a plug-in free (and presumably Flash-free) experience. Instead, the new touch-centric IE 10 will rely on HTML5 technologies for online video and other functions.

Google TV

Summary: Google’s vision for next-gen TV isn’t so crazy if it can leverage Motorola Mobility with a different approach

     Google has never been the one to provide original content - from video and news to music and images. Google has always been about indexing that content, making it readily available to the masses and then incorporating advertising to turn it into a gold mine.

        Sure, Google TV as we know it today is non-starter. The idea of bringing a keyboard and a browser to the living room is a deal-breaker - and Google should have known it, given the repeated failures of others who tried to bring the PC to the TV in earlier years. 

         But who’s to say what Google TV might look like five years from now. The power of Google TV is the technology, not the actual device - and certainly not the content. And with Google now in the set-top business - thanks to that acquisition of Motorola Mobility - it’s not hard to imagine that Google TV technology could make its way into homes everywhere. It’s also not hard to imagine the cable guys - who want to be more than just the dump pipe of the Internet - getting on-board with a premium service that delivers videos from Hulu, YouTube or Netflix - to the customer.

        Remember when TiVo was the enemy because it allowed viewers to fast-forward past commercials? It wasn’t until the DVR technology started showing up in the set-top boxes that the TiVo-like concept went mainstream. Today, every cable and satellite company offers a DVR.

          In many ways, TiVo and Google face similar challenges: Viewers don’t understand the concept and Hollywood is scared of it. But if Google can educate viewers by offering them what they do understand - YouTube and Netflix, for example - as an introduction to Google TV, they might stand a chance on that front. Convincing Hollywood is a bigger challenge but maybe the answer is to partner with the cable and satellite guys on the hardware side and let them deal with Hollywood negotiations, something that they’re old hands at.

Computers That You Can Wear

Experts predict that wearable computing will be the next big thing, but some exciting devices are already here.

It’s an exciting time for the wearable-computing industry. Venture capitalist Marc Andreessen declared in a recent interview that wearable computers were the next big thing for Silicon Valley, and the past few months have seen a flurry of new product announcements in the arena.

A device that records everything you see for later playback, a bracelet that comfortably and discreetly monitors your health, Dick Tracy’s watch phone--these devices aren’t just coming soon, they’re here.

WIMM's prototype Android watchFor instance, WIMM Labs announced just this week a new line of Android-powered devices small enough to fit on your wrist but powerful enough to help you keep track of your calendar, the weather, and more. As our own Ed Oswald was quick to point out, however, we’ve had the technology for these kinds of devices for years. Microsoft’s similar SPOT watch launched way back in 2003.

Wearable computing has already become part of our lives. What else is on the way? Travis Bogard, vice president of product management and strategy for Jawbone, says that the next few years should see wearable computing expand to new areas as consumers become more comfortable with the idea.

Jawbone is best known for its line of Bluetooth headsets, but recently it announced Up, a bracelet that will launch by the end of the year. The discreet device will keep tabs on what you eat and how you sleep, and it will monitor your movement to help you see how much exercise you get. You’ll be able to stay on top of all that information via a phone app that lets you check your data throughout the day.

Laptop Buying Guide: Shopping for the Right Notebook

Shopping for your first laptop, or looking to upgrade your old system? Follow our advice to find just the right one for you.

Are you in the market for a new laptop? Looking to buy a new laptop, or upgrade that four-year-old system that just can't keep up anymore? Navigating the labyrinth of brands, product names, and specifications can be tough. From tiny netbooks to big and powerful desktop-replacement systems, the differences in pricing, features, and performance are staggering. Follow our comprehensive guide to make sure you get the ideal laptop.

Deciding what to buy is tough not just because of all the makes and models and the dizzying array of specifications and customization options, but also because every user is different. Maybe you're buying for a college student whose aging notebook doesn't have the battery life to last through a day of classes. Maybe your child needs a laptop for doing their high-school homework during the week and playing some games, chatting with friends, and watching videos on the weekend. Or maybe you're shopping for a gaming enthusiast who wants something really powerful but a little easier to carry to a buddy's LAN party. Even if you know what you want, with so many laptop models available it can be hard to decide.

It's probably best to start by determining which category of laptop you're most interested in. Laptops can be broadly divided into four main categories: netbooks, ultraportables, all-purpose laptops, and desktop replacements.

Once you have decided which category of laptop is right for your gift recipient (or yourself), it's time to consider the specs. For help in wading through all the product names and acronyms, check out "Making Sense of the Specifications." And before you run your credit card, read our handy "Shopping Tips" list.

Netbooks

Although netbooks are great for their intended purpose, they aren't satisfactory for much else. They typically aren't powerful enough to do everything you need a PC for. Rather, they're meant to be companions to your main PC. Small and light enough to carry around all day, they're the perfect thing for taking notes in class or surfing the Web from a commuter train. A typical netbook weighs about 3 pounds or less, and has a screen size of 6 to 10 inches. Most cost about $300 to $400, but premium features can drive the price up further.