Wednesday, November 21, 2012

What is the difference between 2G and 3G? - Simple explanation

2G Technology
* It is GSM (Global System for Mobile Communication) based technology.
* First step towards the digital wireless communication over existing analog mobile communication.
* Introduced in 1991.
* SIM (Subscriber Identity Module) is introduced in this technology.
* TDMA (Time Division ultiple Access) and FDMA (Frequency Division Multiple Access) are used allow multiple subscribers to make calls simultaneously.
* Bands are used to distribute frequencies like GSM 900 and GSM 1800 (DCS).
* Accordingly bandwidth is allotted.

3G Technology
* Compatible with the IMT (International Mobile Telecommunications-2000) specifications for multimedia supporting.
* Provide support for applications like video calls, high speed internet, multimedia applications, video streaming, video conferencing, and location based services
* These all applications can be used in phones itself.
* Use WCDMA multiplexing to encourage the proper distribution of bandwidths to subscribers.

Difference in terms of speed : 
GSM(2G) data rate is 200 - 300 Kbps
3G data rate is more than 2Mbps (Much faster)

Difference in terms of telecommunication services:
GSM(2G) can provide voice communication and Video communication using GPRS.
3G can provide High speed video communication, High speed Internet, Video streaming, Video Conferencing etc.

Internet and GPRS are just services provided by both technologies only difference is 3G provides in a faster and more secure way.

* 3G is far more secure than 2G

How to upgrade Android version for Samsung Mobiles?

Step 1: Download the latest version of Samsung Kies from HERE and install it in your computer
Step 2: Start Samsung Kies Application
kies How to upgrade Android version for Samsung Mobiles?
Step 3: Connect your Samsung Mobile to your PC using the data cable
Step 4: Samsung Kies will recognize your device and will alert you with a pop up asking you to upgrade your firmware or Android version
kies1 How to upgrade Android version for Samsung Mobiles?
Step 5: Click on Update.  A new screen will pop up with certain Instructions, just read it and finally click on Start Upgrade
kies3 How to upgrade Android version for Samsung Mobiles?
Step 6: Upgradation will continue for some time depending upon your Internet Speed.  Don’t remove the data cable from your PC during these times
Step 7: Finally a popup will appear saying that the Upgradation is complete!!!
I hope now you can upgrade the Android Version of your Samsung Mobile on your own.  Try it and post in your comments with queries.

Friday, November 9, 2012

The most important privacy tips for Instagram

So, what’s the big deal about Instagram, you ask? Well, it’s not just a smartphone app for adding eye-popping color filters and blur effects to your photos.
Above all, Instagram is about sharing your latest snapshots with friends, other Instagram users, and yes, the world.
But what if you’re not feeling the need to show off your Instagram-dipped photos to … you know, everyone?
Luckily, it’s easy to control exactly who does—and doesn’t—get to see your latest works of digital photo art.
Luckily, it’s easy to control exactly who does—and doesn’t—get to see your latest works of digital photo art.
Read on for a few beginner-focused tips on how to get the most out of Instagram without becoming an exhibitionist in the process.

1. Change the privacy setting for your photo feed

Taking a photo with Instagram (available here at the Apple App Store, or here from Google Play) doesn’t just save the image to your phone’s photo gallery. It also publishes your snapshot to your Instagram photo feed—which, by default, is wide open to anyone who cares to look.
Switch your Instagram photo feed to private mode 300x180 6 must know privacy tips for Instagram newbies
Turn the “Photos Are Private” setting on to block your Instagram photos from everyone except your approved followers.
Don’t want everyone gawking at your Instagram pictures? If not, just turn on “Private Mode,” which blocks your Instagram photo feed from everyone except your hand-picked “followers.”
  • Tap the profile button in the bottom-left corner of the Instagram interface, then tap the Settings button in the top-right corner of the screen. (On the iPhone version of Instagram, the Settings button is marked with a gear icon; on Android phones, it’s marked with three dots in a column.)
  • Scroll down to the “Photos are Private” setting (or “Photo privacy” on Android) and flip the switch (or, on Android, check the box) to “On.”
All done? If so, your Instagram photos are no longer accessible to the public, nor will they show up in public searches.
Of course, all bets are off if you decide to share your Instagram shots on Facebook or Twitter, so make sure to double-check which social services are checked on the final confirmation page before tapping the “Share” button (or, in the case of Android, the green button with the checkmark).
Speaking of which…

2. Double-check your Facebook sharing settings

Instagram makes for an easy-as-pie way to share your latest photos with your Facebook friends. Here’s a question, though: when you share Instagram photos through Facebook (which you can do by tapping the Facebook setting on the final confirmation page before posting a photo to your feed), who are your photos being shared with?
Facebook default privacy settings 300x125 6 must know privacy tips for Instagram newbies
Make sure to check your default privacy settings in Facebook before posting Instagram photos to your timeline.
Well, there’s a Facebook privacy setting that governs how third-party apps like Instagram share photos and other content on Facebook. For example, you can set your Instagram photos to be shared publicly, just with friends, a specific group of friends, or just you.
  • Visit your Facebook account and click the downward arrow in the top-right corner of the page, then select Privacy Settings.
  • In the “Control Your Default Privacy” section, you’ll find three options: Public, Friends, and Custom. Choose Public to share photos from Instagram with the world, or Friends to share snapshots with just your Facebook buddies. To make the circle even smaller, choose Custom, then select a friend list or individual friends from the pop-up that appears.
  • Your selections will take effect immediately, so feel free to click away from the Privacy Settings page when you’re done.
Now, take a test photo with Instagram, tap the Facebook sharing setting at the last confirmation page, tap “Share,” and check out your Facebook timeline. You should see your new Instagram photo on your timeline, complete with the privacy setting you choose on the Privacy Settings page.

3. Block random followers

As with Twitter, anyone on Instagram can follow the photo feed of anyone else—including you—unless their profiles are set to “private.”
Let’s say, though, that a few strangers managed to follow your Instagram photos before you set your account to private mode. Now what?
Block an Instagram follower 300x195 6 must know privacy tips for Instagram newbies
You can block any of your Instagram followers from viewing your photos in just a few taps.
If you don’t want randow followers checking out your snapshots, you can always just block them.
  • First, head to your profile by tapping the profile button in the bottom-right corner of the screen. Now, see where your number of Instagram followers is listed? Tap the number, and you’ll arrive at a list of all the Instagram users following your photo feed.
  • See anyone you don’t want thumbing through your photos? Tap their name to view their profile, then tap the menu button in the top-right corner of the screen.
  • A pop-up window will appear with two options: “Block User” and “Report for Spam.” Tap “Block User,” and clang! No more peeking at your Instagram photos for them.

4. Edit your profile

Your fellow Instagram users (well, the ones you don’t already know in real life, anyway) only know as much about you as you reveal in your Instagram profile.
Indeed, the only detail you need to reveal in your profile is your Instagram user name—which could be anything, really.
To edit your profile, tap the profile button in the bottom-right corner of the page, tap the Edit Your Profile button, then add—or delete—any personal details you like.

5. Wipe photos off Instagram’s photo map

The latest version of Instagram boasts a nifty feature that pins any photos you choose to a “photo map” that’s viewable from your profile.
Wipe a photo of your Instagram Photo Map 200x300 6 must know privacy tips for Instagram newbies
Just tap “Edit” and select any photos on your Photo Map to wipe their location data.
Snap the vista from, say, the top of the Empire State Building, and other Instagram users will see it pinned to a map of midtown Manhattan, if you so choose.
It’s a neat feature for showing your friends where you trekked on your vacation, but you might want to think twice before sharing your home address—or the location of your friends’ homes, for that matter.
Before sharing a photo on Instagram, take note of the “Add to your Photo Map” setting on the final confirmation page.
Before tapping the “Share” button, ask yourself: do you really want the location of your photo pinpointed on a map?
If not, make sure the “Add to your Photo Map” setting is set to “Off.”
OK, but what if you’ve already posted a stack of Instagram photos on your photo map? Never fear. Here’s how to peel them off.
  • Tap the profile button in the bottom-right corner of the screen, then tap the Photo Map button on your profile page.
  • Zoom in to a photo you’d like to wipe off your photo map, then tap the Edit button in the top-right corner of the screen.
  • Next, start tapping the photos you want to unpin, and tap the “Done” button when you’re finished choosing.
  • A confirmation pop-up will appear, asking if you’re sure you want to remove the photo(s) off your photo map and permanently delete their location data. All set? If so, tap the “Confirm” button.
Note: Have you set your Instagram photos to “private”? If so, no one else but you can see your photo map, not even your followers.

6. Delete photos from your photo feed

Did you take and share a photo on Instagram that, on second thought, you wish you hadn’t? No, you can’t make your Instagram followers “unsee” a photo, but you can delete it from your photo feed even after you’ve shared it.
  • Tap the profile button in the bottom-right corner of the screen.
  • Below your profile details, you should see all the photos you’ve shared in Instagram. If your photos are displayed in a grid, tap one to select it; otherwise, just scroll to the photo you want to delete.
  • Just below the photo and over to the right, you’ll see a little menu button marked with three dots; tap the button, and a pop-up will appear with a series of options, including a “Delete” button. Tap “Delete,” and whoosh—your photo’s gone from your Instagram photo feed, if not from the memories of your followers.
Have more Instagram questions, or any tips to share? Post ‘em in the comments below.

What are the ways to take charge of the Start screen?

With its sleek design and its patchwork of multicolored, always-updating “tiles,” the new “Start” screen makes for one of the most eye-popping—and bewildering—experiences in Windows 8.
Don’t let the flashy Start screen get the better of you, though. Here’s five ways to take charge, from rearranging your tiles to picking a new background.

1. Change the color scheme

One of the quickest ways take ownership of the Start screen is to give it a fresh coat of paint.
Windows 8 personalizing the Start screen 300x277 Windows 8 tip: 5 ways to take charge of the Start screen
You can gussy up the Windows 8 Start screen from the Settings menu.
All it takes is a few quick clicks in the Settings panel.
  • Mouse over to the top- or bottom-right corner of the screen, then tap the Settings icon (it’s the one that looks like a gear) that slides out from the side of the display.
  • Click “Change PC settings” to visit the “PC settings” screen; the Personalize tab in the left column should already be selected.
  • Click the “Start screen” tab near the top; when you do, you’ll land on a new screen with 20 different background patterns and more than two dozen color schemes. As you click around the various choices, you’ll see the Start screen preview change color and backgrounds.
  • All set? Check out your new Start screen by mousing to the bottom-left corner of the screen and clicking the Start thumbnail.

2. Drag your tiles here, there, everywhere

Don’t like how your various Start screen tiles are arranged? You can move them anywhere you want by just clicking and dragging.
Windows 8 move an app 300x200 Windows 8 tip: 5 ways to take charge of the Start screen
Want to rearrange your Start screen tiles? Just click and drag.
Keep in mind that you can arrange your tiles in different columns, if you wish; just click and drag a tile to the left or right side of the screen. Drag a tile beyond the last column in either direction, and a new one will be created for you.
Want to see all your columns at once? Click the little “-” button in the bottom-right corner of the screen.

3. Stun your “live” tiles

You’ve probably noticed that many tiles in the Start screen boast sliding panels of photos, headlines, and other information.
These are “live” tiles, as Microsoft calls them—and taken together, they form a handy, albeit distracting, dashboard of your digital life, all from the Start screen.
Want to turn one of more “live” tiles off? No problem. Just right-click the live tile you’d like to stop, then click the “Turn live tile off” option.
If you ever have second thoughts, you can always retrace your steps and turn the tile back on.

4. Make your tiles bigger, or smaller

Take a close look at the Start screen and you’ll notice that some tiles are more than twice the size of others.
Windows 8 make an app smaller 300x219 Windows 8 tip: 5 ways to take charge of the Start screen
Just right-click a tile to puff it up, or shrink it down to size.
These double-wide tiles get more room for displaying headlines and photos, and they’re a little easier to spot in a crowd.
Well, it turns out that you can make just about any tile on the Start screen bigger or smaller—perfect for making the familiar Desktop icon more prominent, or shrinking the Games app.
Right-click a tile you’d like to expand or shrink, then click either the “Smaller” or “Larger” buttons.
Keep in mind that there’s only one “small” and one “large” setting for your Start screen tiles. Once you’ve shrunken the Games app down to size, for example, you can’t make it any smaller.
One more thing: Start screen tiles for your old Windows 7 and earlier apps come in the “small” size only.

5. “Pin” or “unpin” an app to the Start screen

So, don’t feel the need have the Sports app starting you in the face from the Start screen? Or want to bring the old Windows Calculator app front and center?
Windows 8 Pin to Start Windows 8 tip: 5 ways to take charge of the Start screen
You can “pin” any app or program, including older Windows applications, to the Start screen.
  • To remove—or “unpin”—an app from the Start screen, just right-click it, then click the “Unpin from Start” button.”
  • To pin an app or program to the Start screen, you’ll first have to find it from the Apps listing. Right-click the Start screen, click the “All apps” button, right-click the app you’d like to add to the Start screen, then click the “Pin to Start” button.
  • Having a hard time finding the program you want to pin? Mouse to the top- or bottom-right corner of the screen and click the Search icon. Once the program appears in the search results, right-click its icon, then click “Pin to Start.”