Thursday, October 13, 2011
Thursday, October 13, 2011 ad server, anil mishra, anilkmishra, cluster, google, googlebolts, how to, larry page, page rank, petabytes, search engine, servers, spider, technews No comments
Google's Secret Formula
In the past 12 months, Google doubled its staff, tinkered with its search engine to speed up results, and now answers more queries than Microsoft and Yahoo combined. But there’s one query we had to answer ourselves: How does Google work?
Blame spell-check. Ten years ago this September, so the story goes, some Stanford grad students were helping Larry Page choose a name for his search engine. “Googolplex,” said Sean Anderson. (They’d already sensed how big this could become.) “Googol,” Page replied. Anderson, checking to see if the name was taken, typed g-o-o-g-l-e into his browser and made the most famous spelling mistake since p-o-t-a-t-o-e. Page registered the name within hours, and today, Google isn’t a typo, it’s a verb, one with a market cap of about $160 billion. Here, then, is a guide to what happens during a typical Google search—now, of course, with automatic spell-check.
1. Query Box: It all starts with somebody typing in a request for information about the safest dog food, what time the D.M.V. closes, or what the prime rate is in China.
2. Domain-Name Servers: “Hello, this is your operator . . . ” The software for Google’s domain-name servers runs on computers in leased or company-owned data centers all over the world, including one in the old Port Authority headquarters in Manhattan. Their sole purpose is to shepherd searches into one of Google’s clusters as efficiently as possible, taking into account which clusters are nearest to the searcher and which are least busy at that instant.
3. The Cluster: The request continues into one of at least 200 clusters, which sit in Google-owned data centers worldwide.
4. Google Web Server: This program splits a query among hundreds or thousands of machines so that they can all work on it at the same time. It’s the difference between doing your grocery shopping all by yourself and having 100 people simultaneously find one item and toss it into your cart.
5. Index Server: Everything Google knows is stored in a massive database. But rather than waiting for one computer to sift through those gigabytes of data, Google has hundreds of computers scan its “card catalog” at the same time to find every relevant entry. Popular searches are cached—held in memory—for a few hours rather than run all over again. That means you, Britney.
6. Document Server: After the index server compiles its results, the document server pulls all the relevant documents—the links and snippets of text from its massive database. How does Google search the Web so quickly? It doesn’t. It keeps three copies of all the information from the internet that it has indexed in its own document servers, and all those data have already been prepped and sorted.
7. Spelling Server: Google doesn’t read words; it looks for patterns of characters, be they in English or Sanskrit. If it sees your requested pattern a thousand times but finds a million hits for a similar pattern that’s off by one character, it connects the dots and politely suggests what you probably meant, even while it provides you the results, if any, for your fat-fingered query for “hwedge funds.”
8. Ad Server: Each query is simultaneously run through an ad database, and matches are fed to the Web server so that they’re placed on the results page. The ad team is in a race with the search team. Google vows to deliver all searches as quickly as possible; if ad results take longer to pull up than search results, they won’t make it onto the page—and Google won’t make money on that search.
9. Page Builder: The Google Web server collects the results of the thousands of operations it runs for a query, organizes all the data, and draws Google’s cunningly simple results page on your browser window, all in less time than it took to read this sentence.
10. Results Displayed: Often in 0.25 seconds or less.
Google’s genius lies in its networking software, which helps thousands of cheap computers in a cluster act like one huge hard drive. Those inexpensive computers allow Google to replace parts without stopping the whole show: If a computer drops dead, there are at least two others ready to take its place while an engineer swaps out the busted machine.
Just about the only thing limiting Google’s performance is how much electricity the company can buy. One of its newest data centers (code name: Project 02) is near the Columbia River in The Dalles, Oregon, which has access to 1.8 gigawatts of cheap hydroelectric power; not coincidentally, this is where major internet hookups from Asia connect to U.S. networks. The byte factory has two computing centers, each the size of a football field.
Based on the few numbers Google releases, experts guess that at least 20 petabytes of data are stored on its servers. But Googleytes are famous for understatement; Wired says Google may have 200 petabytes of capacity. So how much is that? If your iPod were just 1 petabyte (one million gigabytes), you’d have about 200 million songs to shuffle. And if you started downloading a petabyte over your high-speed internet connection, your great-great-great-great-grandchild might still be around when the last few bytes get transferred, in 2514.
Google decides how reliable a site is—and thus how important the site’s content will be when Google forms a list of search results—by considering more than 200 factors as it analyzes content. But the secret sauce is Google’s patented formula for following and scoring every link on a page to learn how different sites connect, which means a site is deemed reliable based largely on the quality of the sites that link to it.
Google deploys programs called spiders to build its copies of the internet. On popular sites, Googlebots may follow every link several times an hour. As they scour the pages, the spiders save every bit of text or code. The raw data are pulled back into the cluster, run through the mill, and scheduled to incrementally replace the older data already on the index and doc servers, ensuring that results are fresh, never frozen.
Wednesday, October 5, 2011
Wednesday, October 05, 2011 anil mishra, anilkmishra, blogs, facebook, google, google +, google plus, how to, ICT, library, quick tips, social networkin, tech tips, technology, tips, tricks, tutorial, Twitter, updates 1 comment
This post contains some useful Google Plus tips and tricks or some useful Google+ Tutorials. Google Plus is now become the most growing social network and gains huge users in the short period of time while in the beta mode. A truth about this blog is that we have included some articles about facebook tips and tricks and found targeted visitors from major search engines but after lanuch Google Plus beta mode we have included Google Plus tips and tricks in this blog and look the major effect that my visitors from search engines increased as a rocket speed so this live experience shows users are searching more and more about Google Plus tips and tutorials in these days.
The main thing on social networking sites is the privacy of their users which is easier in Google Plus to set what you want to show or hide of your data to the web. Facebook did many changes in their privacy setting and launch video chat with skype after launch Google Plus beta mode because if facebook don't take any action then for sure Google Plus reach to the top level with easiest ways but there is no doubt facebook is struggling to stand against Google Plus. By the way check out some most useful Google Plus tips and tricks listed below.
1. Basic Definitions of Google Plus Features as Circles, Hangout, Sparks
What Is Google+?
Google+ is a tool you can use to organize your online contacts. You can upload your pictures and videos to share with friends, join in on a group video chat to plan your next outing, or just hang out!
Enable you to organize contacts into groups for sharing across various Google products and services. Although other users can view the list of people in your collection of circles, they cannot view the names of those circles. Organization is done through a drag-and-drop interface.
To understand Google Plus and Circles better, go to the Settings Gear and select Profile and Privacy. Look for "See how your profile looks to other users." Type in a user name from different circles and click Preview to see what your profile looks like from the specified user.
A front-end to Google Search, enabling users to identify topics they might be interested in sharing with others. “Featured interests” Sparks are also available, based on topics others globally are finding interesting.
Sparks is a great way to find information to help in your professional development towards building your e-capability, all information is current and reliable.
Used to facilitate group video chat (with a maximum of 10 people participating in a single Hangout at any point of time). However, anyone on the web could potentially join the 'Hangout' if they happen to possess the unique URL of the Hangout.
Huddle is a a group messaging feature available within the Google+ mobile app. Rather than sending text messages to each person in a circle the user sends Huddle messages to the group. This can be advantageous when trying to setup where and when to go out.
- Google+ Mobile
Accessing Google+ on one’s Mobile Phone or Device (Currently Android and Web Only)
- Enable Push Notifications
Google+ mobile app -- Launch Google+ on your phone, press the menu button and go to Settings. Enable or Disable notification/vibration/ringtone for Google+ and Huddle notifications.
Google+ (plus.google.com) -- Click the ‘Options’ cog in the top right hand corner of the screen and select ‘Google+ Settings’. Under ‘Set delivery preferences’, add your mobile number and choose Push Notifications or SMS Notifications. Then in the ‘Receive Notifications’ section, choose which notifications you would like to receive by selecting the checkbox in the phone column for each item.
Getting Started with Google+
Google+ can be accessed from http://google.com/+ or http://plus.google.com or http://google.com/plus or, for mobile device, from http://m.google.com/plus.
To share Google+ posts click the “Time link” button and use the Google Shortener Extension for Chrome browser and share posts to Blogger, Tumblr, Facebook and others.
Creative ways to use Circles
Create an “*Inbox” circle and include the people you’d like to see every post from. The friends, family, and acquaintances circles are on top by default.
Create a "Read later" circle and include no other person (Google+ calls it an empty circle). When you see a post you want to read later, share it only with the "Read later" circle. Then when you have some time, open that circle and read through (and delete) the saved posts.
Similarly, create an (empty) "Drafts" circle. When you have an idea for a post, but no time to write it, draft a rough version and share it to the "Drafts" circle. Edit the draft by using "Edit this post" from the drop down menu. Then, when the post is complete, copy it to a new post that you can then share to your circles and delete the draft post.
Yet again, create a similar (empty) circle called “Bookmarks” so you can go back and find that tidbit of information to read and use again and again.
If you would like to mute future notifications on a particular post you can do so by opening notifications, then opening the particular notification you wish to mute. Look at the bottom right hand corner of the notifications box. There will be an option to mute that notification.
Google+ uses the follow character operations to perform italicizing, bolding, or striking through text:
_ italic text _ ➜ italic text
* bold text * ➜ bold text
- strikethrough text - ➜ strikethrough text
_*italic bold text*_ ➜ italic bold text
Formatting symbols only work when the formatted string is encapsulated by spaces, therefore surrounding the symbols by parentheses or brackets escapes the formatting.
[_ italic text _] ➜ [italic text]
** bold text ** ➜ *bold text*
_()(*- strikethrough text -*)()_ ➜ ()(*-strikethrough text-*)()
foo_*italic bold text*_bar ➜ foo_*italic bold text*_bar
**cough** ➜ *cough*
Note: These shortcuts apply to the desktop version of Google+ only.
@Anil Mishra or +Anil Mishra ➜ (press @ or + to link to a person in a post or comment) but they must be a google plus member for this to work otherwise the hyperlink of their name just turns into plain text.
After you post, click the little drop-down arrow (▽) in the upper right of the post to disable comments or disable re-sharing (i.e., for things you don't want to spread beyond your specified audience).
Press “q” to go directly to the chat box
after writing a comment on a post to quickly submit it. (faster
than clicking the Post Comment button every time)
twice and then
to cancel writing a comment.
Press space to drop down a page. (Applies to all web pages)
+space to move
up a page. (Applies to all web pages)
If you want to post directly to specific friends, just type the first letter of their name, a drop-down list will appear, keep typing until you see their name, then select the name and click to send message or begin chat. Alternative quick step, if necessary, click to remove existing “addressees” (i.e. Public, Circles, etc) so that the post is addressed to no one. The in the message area using the + or @ technique described above, start typing their name until you see it, select it, and it will then be included in the message as well as the addressees.
While moving through posts using ‘j’ (next post) and ‘k’ (previous post), you can start a comment by pressing
Use the mouse scroll wheel to navigate through photo slideshows
A core element of Google+ is its privacy features, which have been integrated deeply into the product. Google+ gives users extensive control over these features.
Click edit in your profile to change which circles can view what personal details. Your name, gender, and profile picture have to be public, everything else can be restricted. You can also opt out of appearing in the search results here.
If you would like to send a message to another user, just put their name into the destination field of your posting. If the recipient is not a user of Google+, enter their email address. To save typing the email address every time, you can add them as a contact on the circles page.
If you want the permanent link to a post, click on its timestamp to see the single post. You can copy the URL from your browser to share the permalink (alternatively, you can select “Link to this post” from the drop-down menu at the top left of the post)
You can link directly to your profile using http://profiles.google.com/
There are also non-official shorteners that use the profile number you can find when viewing your profile. (For example go to http://gplus.to/)
To understand Google Plus and Circles better, go to the settings gear to Settings -> Profile and Privacy. Look for "See how your profile looks to other users." Type in a user name from different circles and you will be able to see how your info is shared according to those circles.
There is a shortcut for this under the EDIT PROFILE button on a user’s profile page. It’s a greyed-out “View profile as....” box. Click on each section to see how each person or circle will view each area: About, Posts, Photos, Videos, +1s, Buzz
1. Google+ Tips for Send/Receive Tweets in Google Plus
If you want to twitter integration as sending tweets and showing your twitter updates into your Google Plus account then you can easily integrate your Google Plus account with twitter. you don't need to leave your Google Plus account for sending tweets or showing your updates of your twitter account. Just follow Send/Receive Tweets or Show Twitter Stream in Google Plus.
2. Google+ Tutorials for send/receive facebook updates in Google Plus
Now after twitter integration you can integrate your facebook account in your Google Plus account. You don't need to leave your Google Plus account if you want to post any update in your facebook or you want to see your facebook stream updates. Just follow Show Facebook Stream and Updates Facebook Wall from Google Plus.
3. Google Plus Tips for Bold/Strikethrough and Italic Text
Different text formatting are always eye catching for your friends and for your customers so get noticed to some words for making it bold/italic or strikethrough. Just follow Make text to Bold/Italic/Strikethrough in Google Plus.
4. Google Plus Tips and Tricks for Sending Private Messages
Did you find any option for sending private message to your Google Plus friends? No. Ok some tips is required for sending private messages in Google Plus to your friends. If some one send you private message then you will got these messages into your main stream page and the message will be seen only by you. So just follow Sending Private Messages to Friends in Google Plus.
5. Google Plus Tricks To Get Google Plus Notification Updates on Mobile Phone
Do you want notification if some added you to in circle or if some one write comments on your updates or anything what you check options to getting notification on your mobile phone. Just follow Google Plus Updates Notification on Mobile Phones.
6. Google Plus Wall Status Updates By Mobile Phones via SMS
Now if you are an Indian users then you can send Google Plus updates via SMS from your mobile phones and also you can send updates to individual circles. Hope this features will be launch word wide soon! So for Indian users just follow Get Google Plus Updates from Mobile via SMS Text.
7. Google Plus Tips for Adding Google+ Widget To Blogs
Are you a webmaster? Have you any blog? If your answer is yes, then by adding Google+ widget to your websites or blogs you can increase your Google Plus connections so for adding Google+ widget for your blogs just follow Adding Google+ Widget To Blogs.
8. Google+ Tutorials:Sharing your wall updates to directly facebook, Twitter, LinkedIn, Tumblr
You can now share your Google Plus wall updates directly to facebook, twitter, linkedin and tumblr. Your each updates will contain a button of "Share on..." and if you click on then you will see option to share. This is all have done by a chrome extension so you have to use chrome browser if you want this option. Now if you are on chrome browser and want to enable this feature then just follow Share Google Plus Wall Updates To Facebook/Twitter.
9. Downloading Google+ data as friends contact, albums, videos to desktop
If you want to secure your Google Plus data as your albums, your uploaded videos or your friends contact, your stream data and your profile data to your desktop hard drive before being hacked by some one. Just follow Download All Google Plus Data To Desktop Hard Drive.
10. Google Plus Tips To Move Facebook Album Photos To Google Plus
Have you many photos in your many albums and want all photos in your Google Plus Profile. It is very difficult to save all photos to your desktop and then upload these to your Google Plus Profile. A Chrome Extension is there for easily move your facebook photos to your Google Plus account with some clicks. You have to be on chrome browser if you want to move your facebook albums to Google Plus by just simple clicks. Just follow Move Facebook Photos To Google Plus Account.
These Google Plus Tips and Tricks are regularly updated so get back after some days to this post you will see some more Google Plus Tutorials. If you want to get updates on Google Plus then you can get noticed by bookmark this page, Add me in your Circle on Google Plus and you can Be My Fan on Facebook and follow us on Twitter or simply get updates directly to your email address just verify your email address with us for SubscribeMy News Later.
Tuesday, October 4, 2011
Tuesday, October 04, 2011 anil mishra, anilkmishra, ICT, library, screencast, tech tips, technews, technology, video, webcast, website No comments
If you are a blogger, social networker, web designer or just a simple guy who wants to create a video for your blog readers, website visitors, to show them how to search a particular website or search engine, database etc., then this post can really help you.
Creating a great library website video can be challenging. However, if you use one of the following free programs, you will find it much easier.
1. Sketchcast.com Use this cool tool and site to create videos with sketches made by creating stick figures.
2. Flixtime.com Use this site to create a video with pictures, text, audio or music.
3. Animoto.com Another site similar to flixtime.
4. OneTrueMedia.com Another site similar to flixtime and animoto however, one true media allows you to create longer videos for free.
5. Prezi.com This nifty site lets you create videos that are a mixture of powerpoint and interactive video.
6. Screenr.com Use this handy site to record screen capture videos. The videos are also hosted on the web by ScreenR.
7. Masher.com Another site similar to some of the others only with a few unique features.
8. Stupeflix.com Use this site to create videos that are a combination of photos and videos.
9. Slidesix.com Create videos out of your power points.
10. Camstudio.org Use this free download software to create screen capture videos. This program works a lot like camtasia, only it’s free and does not have as many editing features.
What is your favorite way to create library videos?