What is CAPTCHA - The Complete Explanation

       

                     Ever wondered what CAPTCHA means??

What is the difference between reCAPTCHA & CAPTCHA?

CAPTCHA is "Completely Automated Public Turing Test To Tell Computers and Humans Apart". This will test and analyse whether the user is a human or computer and so prevents spam and automated data downloading. It typically asks the user to write down a combination of alphabets/numbers from an image. The text cannot be copy pasted from the image, thus preventing computers any access.
Below pic is an example of CAPTCHA: This user identification procedure has received many criticisms, mostly from the disabled people and also from other people who feel that their everyday work is slowed down to sort out the words that are difficult to read.Do you known something! For an average person it takes approximately 10 seconds to solve a typical CAPTCHA. Any program that passes the tests generated by a CAPTCHA can be used to solve a hard unsolved AI (Artificial Intelligence) problem.                 What is reCAPTCHA? reCAPTCHA is a free service that protects your website from spam and abuse. reCAPTCHA uses an advanced risk analysis engine and adaptive CAPTCHAs to keep automated software from engaging in abusive activities on your site. It does this while letting your valid users pass through with ease.reCAPTCHA offers more than just spam protection. Every time our CAPTCHAs are solved, that human effort helps digitize text, annotate images, and build machine learning datasets. This in turn helps preserve books, improve maps, and solve hard AI problems. Easy for People.   Hard for Bots                Purposefully designed. And actively aware. reCAPTCHA knows when to be easy on people and hard on bots. Our easy CAPTCHAs are a breeze for legitimate users.   This idea an interesting application of CAPTCHA. There are several projects of converting books to the ebook version. One method is to scan the books and use OCR software to convert image of text to actual text. But somebody has to validate whether the conversion is successful. Luis von Ahn, Ben Maurer, Colin McMillen, David Abraham and Manuel Blum at Carnegie Mellon University developed reCAPTCHA to help in this problem. Instead of random texts in CAPTCHA, actual texts from scanned books are shown. The user writes the digital text. This is used to validate each word from several users.                                                                          Check out this video Guys!                                                                                                                                                                                                                                                                                                                                                                        - sandeep simeon

All About Google Tango Enabled " Lenovo PHAB2 Pro "

Hey people i'm back with the review of brand new  Lenovo smartphone which has Google Tango enabled The Lenovo PHAB2 Pro 

The Phab 2 Pro is the world's first smartphone enabled with Tango which is a  new technology from Google that enables augmented reality (AR) gaming and utilities. All you have to do is look through the Phab 2 Pro, and you'll see objects and information overlaid onto the real world.You can make really cool stuff like measuring objects with  your phone, visualize furniture like a new table or sofa to see how it looks in your home Or simply play with your virtual pet may be a Dinosaur  Wherever you go with the Phab 2 Pro, there's always more to explore and trust me this will take you to the next level of smartphone usage and the Augmented Reality experience.

What is Augmented Reality ? 

                            How many of you have ever played the most trending game of 2K16 any guess? |> Its the Pokémon GO i know most of you are still addicted to it.

It is a free-to-play location-based augmented reality mobile game developed by Niantic. It was initially released in July 2016 for iOS and Android devices. The game allows players to capture, battle, and train virtual Pokémon who appear throughout the real world.

Lets get back to AR :

 Augmented Reality means your smartphone that will be aware of it surroundings, and  create computer generated images to superimpose them on a user's view of the real world  to provide a merged view that they can interact with. The PokÃmon Go and House of the Dying Sun are some of the top AR games in the  world.

Impressive Specifications :

General

• Model Number
  • PB2-690M
• Model Name
  • Phab 2 Pro
• Color
  • Champagne Gold
• OS
  • Android
• Operating System Version
  • 6.0(Marshmallow)
• RAM
  • 4 GB
• Voice Call
  • Yes
• Display Resolution Type
  • Quad HD
• Supported Network
  • 4G LTE, 4G LTE
• Display Supported Network
  • 4G LTE, 4G LTE
• Processor Type
  • Qualcomm (MSM8976) Snapdragon 652 Processor
• Operating Frequency
• GSM - B2/B3/B5/B8; UMTS - B1/B2/B5/B8; 4G LTE (FDD) - B1/B2/B3/B5/B7/B8/B20, LTE (TDD) - B38/B40/B41 (Narrow Band)

More  Details

• Display Size
  • 6.4 inch
• Display Resolution
  • 2560 x 1440 Pixels
• Primary Camera
  • 16 Megapixels
• Internal Storage
  • 64 GB
• Processor Speed
  • 1.8 GHz
• Sim Size
  • Nano SIM
• Sim Access
  • Dual Standby
• Sensors
  • Fingerprint Sensor
• ROM
• 64

Camera Features

• Advanced AR-enabled Rear Camera, PDAF Fast Focus, Depth Sensor for Tango, Motion Tracking Sensor for Tango ( Tango is a New Set of Sensors and Software by Google), Depth Camera and Fisheye Camera,Fixed Focus.
• 
• 
  
• Display Features
  • 2K IPS Assertive Display, 2.5D Curved Gorilla Glass Curved Screen
  • 
    
  • Warranty
    • Warranty Summary
      • 1 Year for Mobile & 6 Months for Accessories
    • Warranty Service Type
      • On Site Service Center
    • Covered in Warranty
      • Warranty of the product is limited to manufacturing defects only
    • Not Covered in Warranty
      • Warranty does not covered any physical damage

.

Meet Lenovo Phab 2 Pro

Starting at: $499.99

BUY NOW

The above mentioned is the price in USA and Good news for all INDIAN's over there Pahb 2 Pro in India is just for 

₹29,990 available at flip-kart.So go grab it now click here.

Check Out the Hands On Experience Here 

 Click Here !

~ SandeepSimeon

Sundar Pichai #BackOnCampus and 10 things he said in IIT- Kharagpur.

   Google CEO Sundar Pichai is in India. And just the way he did it last time when he was here in December 2015, he  again met young students of IIT-K. In his earlier trip Pichai interacted with students at Delhi University. But this time he chose to visit his alma mater IIT- Kharagpur.


Sunder Pichai graduated from the very same Institution way back in 1993.The Google Head was very cool,he talked about his time at the IIT-K, including how once he got C grade in one paper and discussed some of the success making tricks.He also talked about some funny incidents that  happened in IIT in his time.This event was live streamed Youtube with the Hashtag #BackOnCampus and so many people joined live with Google C.E.O.



    Here are 10 bits that made the day  from his interaction with the IIT-K students.

1. Pichai is from Chennai -South India so when he came to IIT- Kharagpur, he had some tough time with Hindi. "When I came to Kharagpur for the first time I thought abe saale was how people usually call each other. Once I shouted 'abe saale' in the mess and it basically caused the mess to shut down for a few days," he said.

2. While at IIT-Kharagpur, Pichai was among the more brilliant students but once he also got C grade in one paper, he told students, that grades doesn't decide they life.


3. He said that he really loves cricket. "I love cricket. It has been phenomenal to see Virat Kohli play. He has performed great in all forms of cricket, be it 50 overs, test or T20."

4. Pichai also likes Bollywood. "Deepika Padukone, you can call, is my favorite Indian actress right now. Back in college there were many."


5. He also said that "Digital market in India is still developing and that's where statups face trouble. In a country of 1.4 billion people only 300 million have smartphones. I advise startups to build for future if they want to compete with MNCs," 

6. Pichai really thought Gmail was an April Fool's Joke. But then the whole world did. "My interview at Google was on April 1st, April Fool's Day, so everyone thought what if it is a joke. And then we didn't know much about Google products and there was so less time to prepare. I hadn't had a chance to use it (Gmail in the beginning was an invite-only website), I thought it was an April fool's joke."


7. Pichai told students should also have grip on other skills such as knowing about environment etc. "It is important to develop other skills during a course like engineering".

8.  Pichai also said that sometimes bad grades make a way to work hard for the good grades. "I think I did get C sometime (when I was at IIT)... My first year CGP was so bad I had to work hard to make up for it for the next three years,".


9. And this is the most interesting thing He met his wife in IIT-K. "I met my wife Anjali at IIT Kharagpur, so whenever I asked a friend to call her, they would shout loudly Anjali, Sundar is here for you," he said.

10.  Pichai said students to follow their own dreams and not some others.He also told India should allow its students to take more risks. "Education system in India is made in such a way that students have to follow already set rules. I think it is more important to try different things and take more risks". 


Here I Conclude :
What so ever Mr.Sunder Pichai said to the students was absolutely a perfect pack of Success Tips and Tricks.So as he said, from now i wish each and every student should take risks in his/her life and try something different each day and lead their life happily.   
                        Watch the Glimpse of Google C.E.O - Sunder Pichai's Talk. 

                                                                                                   -   Sandeep simeon