Categories
Camera General Awereness Main Technology

CCD / CCTV vs CMOS Camera

Charge Coupled Device (CCD) Camera and Closed Circuit TeleVision (CCTV) Camera are used in producing good quality Digital Video Recordings and Still Photos (for the surveillance purposes).

CCD Camera
CCD Camera
CCTV - CCD Camera
CCTV - CCD Camera

Complementary Metal Oxide Semiconductor (CMOS) Camera are also used for the same purpose but they provide little poor quality as compared to the CCD/CCTV Cameras. In a CMOS Camera Sensor, each pixel has its own charge to voltage conversion, noise correction, amplifier, digitization circuits and chip output bits.

CMOS Camera
CMOS Camera

CCD/CCTV camera are of two types : Digital and Analogue, which are able to send the signals to any PC/Laptop or a Storage Device like Tape Recorder. While CMOS Camera can be plugged to any USB Device, to get all data from the camera.

Here are some major differences between CCD/CCTV and CMOS Cameras :

1. CCTV/CCD Cameras are made up of semiconductors, capacitors and sensors which produce little better videos and photos as compared to the CMOS Cameras.

2. CCD/CCTV Cameras are more sensitive and expensive than the CMOS Cameras.

3. CCD Camera consumes more power than the CMOS Camera.

4. While comparing the cost, CCD Camera costs more than the CMOS Camera.

5. CMOS Sensors are more susceptible to Noise as compared to the CCD Cameras. This noise can contribute to gap in the image quality.

Here is the comparison of Image quality of CCD and CMOS Camera :

CCD / CCTV vs CMOS Comparison in LED TV
CCD / CCTV vs CMOS Comparison in LED TV

Please share your feedback.

Categories
Android Entertainment & Fun Ethical Hacking General Awereness Main Mobile Phones Online Services Tablet PCs Technology

Make Free Voice Calls to US & Canada from Android GrooVe IP by Wi-Fi or 3G/4G (Using Google Voice) | Call US Toll-Free | Alternative to Skype Mobile

I have seen folks looking for the android apps which can let them call free in United Stated and Canada, if not all then at least the toll-free ones.

GrooVe IP uses Google Voice service to call any phone number. [Google Voice provides unlimited calls to United States (US) and Canada, and cheaper international calls].

Though there is an Official Android Version of Google Voice, but it only connects with your Google Account and doesn’t provide a Smartphone VOIP features like Google Voice on Gmail or Skype.

But now with GrooVe IP app you can use your Google Voice account and call all the phone numbers directly from your Android Smartphone. This android software supports receiving and making calls over the Wi-Fi or 3G/4G network, so their is no need to worry about the voice minutes. You can also use this app to make free calls to any US Toll-Free number from your Android Phone or Tablet PC.

Groove IP app is really useful when you are in Wi-Fi Hostspot region or using 3G connection. This app syncs your all your Phone Contacts, and contains a separate dialer in it.

Here is the method for installing and making call by Groove IP :

1. Install Groove IP app on your Phone

Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice)  No Local Minutes Required  Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice) No Local Minutes Required Alternative to Skype Mobile

2. Now Sign-in by using your Google Account Credentials (which has Google Voice Enabled).

Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice)  No Local Minutes Required  Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice) No Local Minutes Required Alternative to Skype Mobile

3. Now you can either use your Phonebook or Dial a number to make any call.

Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice)  No Local Minutes Required  Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice) No Local Minutes Required Alternative to Skype Mobile

Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice)  No Local Minutes Required  Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice) No Local Minutes Required Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice)  No Local Minutes Required  Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice) No Local Minutes Required Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice)  No Local Minutes Required  Alternative to Skype Mobile
Make Free Voice Calls from Android GrooVe IP by Wi-Fi or 3G4G (Using Google Voice) No Local Minutes Required Alternative to Skype Mobile

Groove IP Android Market Link :

https://market.android.com/details?id=com.gvoip&pli=1&rdid=com.gvoip&rdot=1

Note : Google Voice has no official relationship with the GrooVe IP App.

Categories
General Awereness Main Technology

Monorail vs Metro Rail : Similarities and Difference

Many folks have only heard about the Monorail, but never seen it in actual. On the other side, Metro rail is available in many countries (previously available to only a few countries).

The purpose of both Monorail and Metro Rail is to make the mass transit system more convenient and fast.

Monorail and Metro Rail are different in speed, design and cost. However both are derived from the same concept, which was originated from the problem of congested routes and lots of stoppages in between the tracks. The congested tracks and traffic were giving a big delay while traveling from one place to another. Both the trains are made from light-weight material, so that they can run at a very high-speed, while carrying a thousands of passengers.

Both Metro rail and Monorail run on independent tracks, and their speed is very high as compared to the conventional trains. But when comparing in between, metro rail is more faster than the monorail.

Similarities :

1. Both Monorail and Metro rail runs at a very high speed as compared to the conventional trains
2. Both are made-up of light weight material, which can help in improving their speed
3. Both makes the mass transit system more convenient and fast
4. Both trains run by using electricity as a fuel, and hence no petroleum product gets wasted

Difference :

1. Metro rail and Monorail run on independent tracks
2. Monorail costs less than the Metrorail.
3. Speed of Monorail is low than the Metrorail.
4. Monorails capacity is about 10000 passengers per hour, while Metrorail has a capacity of 40000 passengers.
5. The fare in Monorail is comparatively low than the Metrorail.

Here are the example photos of Monorail :

Monorail vs Metro Rail : Which one is better ?
Monorail vs Metro Rail : Which one is better ?
Monorail vs Metro Rail : Which one is better ?
Monorail vs Metro Rail : Which one is better ?
Mumbai Monorail Trial From Wadala to Bhakti Park
Mumbai Monorail Trial From Wadala to Bhakti Park

Here are the example photos of Metro Rail :

Monorail vs Metro Rail : Which one is better ?
Monorail vs Metro Rail : Which one is better ?
Monorail vs Metro Rail : Which one is better ?
Monorail vs Metro Rail : Which one is better ?
Categories
General Awereness Main

Warranty vs Guarantee : Which one is better ?

Warranty and Guarantee are similar things, In terms of service to a product or service.

Warranty vs Guarantee : Which one is better ?
Warranty vs Guarantee : Which one is better ?

Guarantee is an assurance document given by the Seller/Manufacturer that ensures the replacement of whole product without repairing it. Guarantee is rarely given by the sellers as it is not feasible to replace all products free of cost. If the sellers provide Guarantee, then it is for a very short time.

Warranty vs Guarantee : Which one is better ?
Warranty vs Guarantee : Which one is better ?

Warranty is also an assurance document given by the Seller, but it only ensures that the covered parts get repaired under warranty period. A manufacturer may or may not charge for the warranty. Companies will replace the products, only if the fault is unrepairable.

Warranty is of 2 types
1. Full Warranty
2. Limited Warranty

Full Warranty : Full warranty means, all the parts of the product are covered under the warranty, and whenever fault happens with that product, it will get repaired.

Limited Warranty : Limited warranty means, either only a few parts are covered under warranty or warranty is restricted to normal conditions. e.g. In some products, fault occurred due to Shocks are not covered under warranty.

Summary :

1. Guarantee is provided in addition to the Warranty.
2. Warranty may or may not be chargeable, but Guarantee is provided free along with the product
3. Warranty ensures the fault in product gets repaired*, but Guarantee ensures the total product replacement.
4. Warranty is provided for a longer period than the Guarantee
4. Warranty can be renewed, but 5uarantee can’t be renewed after its expiry.

* If a company fails to rectify the fault in the product, then it may replace the whole product.

Categories
General Awereness Main Mobile Phones News

Top 5 Dual Sim Mobile Phones Under Rs.5000 / $100 : Nokia C2-03, Asha 200, Motorola Quartz EX212, Samsung Chat C3222 DUOS, Karbonn K1616

These days there are number of smartphones available in the market, and people often get confused which one to buy among them.

First of all, keep in mind that buying a Mobile Phone is not a big deal, but buying a Smartphone is just like the status symbol.

You should always choose a mobile phone which can maintain your status-symbol, and also fits into your budget. But remember, you have to be careful while choosing a cheaper mobile phone, otherwise that cheap mobile phone can turn into your mistake.

To ease your selection of good mobile phones under Rs.5000 / $100 budget, we have done a market research and found following 5 phones which are value for money and provides features like a Smartphone.

1. Nokia C2-03 Touch and Type (Price : Rs. 4425 / $88) :

Nokia C2-03 is a Dual Sim S40 Phone. The main feature of this phone is “Easy Swap SIM support”, by which you don’t need to restart your phone to change the SIM Card.

Nokia C2 03 TouchScreen Mobile Phone Price and Specifications
Nokia C2 03 TouchScreen Mobile Phone Price and Specifications

Nokia C2-03 Specifications :

  • Dual SIM TouchScreen Phone with Symbian S40 OS
  • Easy Swap SIM support (Without Restarting)
  • 2MP Primary Camera
  • 2.6 inch screen display
  • 3.5mm Audio Jack
  • Bluetooth version 2.1 with A2DP
  • EDGE
  • Music, and Video Player
  • MicroUSB 2.0 Support
  • Micro SD Memory Card Support upto 32GB
  • 2-days battery backup

2. Motorola Quartz EX212 (Price : Rs. 4599 / $91) :

Motorola Quartz EX212 Price and Specifications
Motorola Quartz EX212 Price and Specifications

Motorola Quartz EX212 Specifications :

  • Dual SIM Phone with Secondary External Display With Icons
  • 2MP Primary Camera
  • 2.4 inch screen display
  • 3.5mm Audio Jack
  • Bluetooth version 2.1 with A2DP and EDR
  • EDGE
  • Music, and Video Player
  • MicroUSB 2.0 Support
  • Micro SD Memory Card Support upto 16GB

3. Nokia Asha 200 (Price : Rs. 4370 / $87) :

Nokia Asha 200 Price and Specifications
Nokia Asha 200 Price and Specifications

Nokia Asha 200 Specifications :

  • Dual SIM QWERTY Phone
  • 2MP Primary Camera
  • 2.4 inch screen display
  • 3.5mm Audio Jack
  • Bluetooth version 2.1 with A2DP and EDR
  • EDGE
  • Music, and Video Player
  • Stereo FM with RDS and FM recording feature
  • MicroUSB 2.0 Support
  • Micro SD Memory Card Support upto 32GB

4. Samsung Chat C3222 (Price : Rs. 3850 / $77) : (also known as Chat 322 DUOS)

Samsung Chat C3222 aka Ch@t 322 DUOS Price and Specifications
Samsung Chat C3222 aka Ch@t 322 DUOS Price and Specifications

Samsung Chat C3222 aka Ch@t 322 DUOS Specifications :

  • Dual SIM QWERTY Phone
  • 1.3MP Primary Camera
  • 2.2 inch screen display
  • 3.5mm Audio Jack
  • Bluetooth version 2.1 with A2DP and EDR
  • EDGE
  • 3D Music Player, and Video Player
  • Stereo FM with recording feature
  • MicroUSB 2.0 Support
  • 54MB Internal Memory
  • Micro SD Memory Card Support upto 8GB

5. Karbonn K1616 Magic (Price : Rs. 4829 / $96) :

Karbonn K1616 Magic Price and Specifications
Karbonn K1616 Magic Price and Specifications

Karbonn K1616 Magic Specifications :

  • Dual SIM Phone
  • 3.5 inch Capacitive Touch Screen display
  • 3.2MP Primary Camera
  • 3.5mm Audio Jack
  • Bluetooth version 2.1 with A2DP
  • EDGE
  • Music, and Video Player
  • Stereo FM
  • MicroUSB 2.0 Support
  • Micro SD Memory Card Support upto 8GB
Categories
Computers General Awereness Main Online Services Technology

Managing Google Backup Phone Number and Passwords : Be Tension Free with 2-Step Verification

If you have already enabled the Google 2-Step Verification System, then it is very important to get the alternatives (back-up passwords) to access the Google Account and Services.

There may be the cases like,

  • When you lose your Mobile Phone,
  • If your Phone Network is not available etc.

In such scenarios, there are 2 alternatives :

  • You can add a Backup Phone Number
  • You can download the Printable backup codes

Adding Backup Phone Number :
If your primary phone is not available due to any reason, then you can get verification codes on your Backup Phone Number.

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

To do enable this service,

1. Go to https://accounts.google.com/b/0/SmsAuthConfig.
2. Click on “Add Phone Number” (as shown below)

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

3. Now Select your country, Enter phone number and save it. (You can also ask Google to test this mobile phone number by sending a security code).

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

Printable Backup Passwords (Codes) :
Another way to get access to your Google Accounts without entering Security code is, Printable Security Codes.

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

To get these codes,

1. Go to https://www.google.com/accounts/SmsAuthConfig, and click on “Show backup codes”

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

2. Now Print or Save these passwords in a secure place. As per statement from Google – These codes would be the only method to log-in to your Google Account, if your phones are unavailable.

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

3. You can also generate a new set of backup passwords, if you want older ones to be removed.

Be Tension Free with Google Backup Passwords - Using 2-Step Verification
Be Tension Free with Google Backup Passwords - Using 2-Step Verification

Hope you have enjoyed the article!
You can also learn how to create application specific passwords for accessing Google account and services.

Categories
Android Computers General Awereness Main Mobile Phones News Online Services Technology

How to Create Application Specific Passwords for Accessing Google Accounts / Services ?

I hope you already know how to enable the 2-Step Verification in your Google Account.

Google Account Services - Application Specific Passwords
Google Account Services - Application Specific Passwords

 

Application Specific Password is a type of security provided by Google, by which you can choose different passwords for accessing different applications. This service is mandatory for such applications, which can’t ask you the verification codes.

For Example : You can create separate password for accessing,

1. For accessing Google Services on Android, iPhone, or Blackberry
2. To Log-in to Android Market from your Mobile Phone or Tablet PC
3. To Sign-in on Chat Clients like GTalk, Aim etc.
4. To Log-in on E-Mail Clients like Microsoft Outlook, Thunderbird etc.
5. To Sync Chrome (between Android and Desktop), and so on.

To create application specific passwords,

1. Visit https://accounts.google.com/b/0/SmsAuthConfig?SetupComplete=1.

2. Click on “Create passwords”

How to Create Application Specific Passwords for Accessing Google Accounts Services
How to Create Application Specific Passwords for Accessing Google Accounts Services

3. Enter the name of Application for which you want to generate the password, and click on “Generate password”

How to Create Application Specific Passwords for Accessing Google Accounts Services
How to Create Application Specific Passwords for Accessing Google Accounts Services

4. Now your Application Specific Password is created, by which you can access that application without verifying a security code.

How to Create Application Specific Passwords for Accessing Google Accounts Services
How to Create Application Specific Passwords for Accessing Google Accounts Services

By using the above process, you can create a number of Application Specific Passwords.

To manage your application specific passwords (, you can visit https://accounts.google.com/b/0/IssuedAuthSubTokens, where you can Revoke or Add new Passwords.

You can also learn how to directly access the Google Account, if you have lost your phone number.

Categories
Computers General Awereness Main Online Services Technology

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

We often use computer at a friend’s home, in Office, College and in Cyber Cafe. But we can’t rely on the security of that system. There could be key-loggers or Trojan Horses installed on it, which can record your each activity and send it to the wrong hands.

Please note Keyloggers have nothing to do with the strong password. They can record all your activities, including usernames, passwords, and what sites you have accessed etc.

To overcome this thing, Google provides an extra layer of security known as 2-Step Verification. After activating this service, first of all you need to enter your login credentials and thereafter, you need to verify the login by the security code received on your mobile phone.

To activate Google 2-Step Verification, you can follow these steps :

1. Sign in to your Google Account

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

2. Click on your Username

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

 

3. Go to the Account Settings

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

4. On the Account Settings page, you will get an option by the name “Using 2-step verification”. Click on the edit button.

5. Click on Start Setup

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

6. Select Country, Update your Mobile Phone Number and Send code button.

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

7. Enter and verify the code received on your mobile phone.

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

8. Remember Cookie on Computer for 30 Days :

If you are using 2-Step Google Services at your home itself, then this 2-step verification could be annoying. So to get rid of this, you can tick on the option “Remember this computer for 30 days”. This option will save a cookie in the browser for 30 days.

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

9. Turn On 2-Step Verification :

How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide
How To Protect Your Google/GMail Account From Hackers, Even If They Hack Your Password : Step by Step Guide

So your 2-Step verification has been successfully setup.

Now whenever you login to your Google Account (any google service), you will need to enter do this verification.

After applying 2-Step Verification : If you are accessing Gmail, Google Search, Youtube or any other Google Application from your Mobile Phone or Tablet PC, then you need to create Application-Specific Passwords for accessing them. You are also advised to add a backup phone in your google account and download the backup passwords to get direct access, if your phones are not available.

Categories
Entertainment & Fun General Awereness

Comparison between Tata Sky+ HD and Dish TV True HD+ etc. : HD DTH TVs

If you have an High Definition Television and thinking which DTH Package would be more suitable for it to enjoy the HD-Channels with superior quality, then you’re on the right page.

DTH Service Providers Comparison : Tata Sky Plus HD vs Dish TV TruHD Plus, Reliance Digital TV, Airtel Digital TV and Videocon D2H
DTH Service Providers Comparison : Tata Sky Plus HD vs Dish TV TruHD Plus, Reliance Digital TV, Airtel Digital TV and Videocon D2H

We will give you a little comparison among famous DTH Service Providers.

At present the DTH providers (like Tata Sky, Dish TV, Reliance Digital TV, Videocon D2H and AirTel Digital TV) are giving only a few HD channels.

HD Channels List :
1. NATIONAL GEOGRAPHIC HD
2. ESPN HD
3. DISCOVERY HD
4. STAR MOVIES HD
5. STAR GOLD HD
6. Star Plus HD

The above HD Channels come with 1080i Resolution, 5.1 Surround Sound, and 16:9 aspect ratio.

Here is the Comparison between Tata Sky+ HD and Dish TV True HD+ :

Tata Sky+ HD :
1. HD Channels Subscription Pack is available at a cheaper pack [starting from Rs.150 per month]
2. One Year All Channels Pack is available at Rs.11016 with free Set-top box, installations charges
3. Tata Set Top Box costs Rs. 5990 with free 1 month subscription
4. Tata Sky Customer Support is very good

Dish TV True HD+ :
1. HD Channels Subscription Pack is available starting from Rs.375 per month
2. The Set Top Box price for Dish TV True HD+ is Rs. 2990 (Set Top box-Rs.2690 + Remote-Rs.300), which is comparatively low, but an external Hard-Disk drive is required to Record Live TV. (You can use any USB device from 2GB to 2TB)
3. Customer Support is poor

Other DTH Service Providers like Reliance Digital TV, Airtel Digital TV and Videocon D2H are also offering good High-Definition Channel packs, but TATA Sky+ HD is cheaper than all of them.

Categories
Browsers Computers General Awereness Main News

Google Chrome 17 (Desktop) : More Faster, and Safer Browsing with New Omnibox Prerendering and Scanning Protection

Google has recently launched a stable update to their Chrome Desktop Browser, with many added features and fix to a number of security vulnerabilities.

There are mainly 2 new features provided, Document Scanning and Omnibox Prerendering.

Google Chrome 17 - Config chrome flags screenshot
Google Chrome 17 - Config chrome flags screenshot

1. Download File Scanning :
Whenever you download something by using Google Chrome browser, Chrome will check the file in its list. If file is hosted on the Blacklisted Servers/Websites or appears to be an infected one, then Chrome will warn you that the file consists of malware or viruses. This new layer of protection also works for .exe and .msi extension files.

This feature is provided for your security, but if you believe that the file you are downloading is safe, then you can download it by selecting the option.

2. Ultra fast browsing via Pre-Rendering :
Google Chrome 17 comes with Pre-Rendering enabled. If you have activated the Pre-Rendering option, then it will appear that the sites you are surfing are loading instantaneously. To disable this feature, you can go to chrome://flags/ in the chrome address bar, and select Disable option under Prerender from omnibox.

Google Chrome 17 flags new features - prerender from omnibox and smooth scrolling
Google Chrome 17 flags new features - prerender from omnibox and smooth scrolling

3. Smooth Scrolling :
Google Chrome has provided Smooth Scrolling as an experimental feature, just like the Firefox 12 Aurora.

4. Security Fixes :
In terms of security, Google Chrome 17 has around 20 security vulnerability fixed, out of which a few were severe.

5. Synchronization with Chrome Beta for Android :
You can login into your Chrome profile, and share from PC to mobile, or from mobile to PC.

Google Chrome 17 Synchronization Sign in Snapshot
Google Chrome 17 Synchronization Sign in Snapshot

Please share your reviews after installing the new version of Google Chrome.