How do touchscreen work ?

Keypads are yesterday’s technology. Today, touchscreens rule the market. Devices with screens that respond to the user’s touch are now our go-to gadgets for communication, information, and entertainment. While buttons, keys, and trackballs remain useful, the keypad as we know it looks headed for the nonessential list.

Touchscreen technology looks awfully complicated, but a glimpse underneath your device’s responsive screen reveals nothing but simplicity, beauty, and dashes of technical smarts. Touchscreen technology comes in many varieties, but two functional types stand out. Your phone probably owns a capacitive touchscreen, while your car’s GPS device possibly features resistive technology.

Capacitive Touchscreens 

Capacitive touchscreens make use of the user’s own electrical charge to detect touch points. An insulating surface covers layers of conductive metal arranged in rows.

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How can i backup contacts on Android Phone?

Smartphones are increasing day by day. Android is one of the leading Smartphone Operating System which comes with alot of features. One of the best feature in android is taking Backup of Contacts in Android Smartphones. In this article I will show you how you can backup contacts on android phone. So, lets get started.

Tutorial Backup Contacts

First of all go to your contacts page on your Android phone.

Now press the menu button of you android phone, a list will open.

Tap on Import/Export, and a new popup screen will be displayed

Tap on “Export to SD card”

Click on OK, and a new file will be saved in your SD Card directory with the name of

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