As we know it is possible to get latitude and longitude of every popular place on google maps.But what if I want to find out latitude and longitude of every place where I am standing without help of google maps?Is there any specific device which will help me to do this?
I think what you're looking for is a Global Positioning System which is also commonly known as GPS. Some good brand name devices are Garmin and TomTom.
If you would like to accomplish finding your location through an Android phone or iOS device using strategies involving GSM, Wi-Fi, Cell towers, etc. Here are some links:
Android Location Strategies: http://developer.android.com/guide/topics/location/strategies.html iOS Core Location: http://www.iosdevnotes.com/2011/10/ios-corelocation-tutorial/