I was wondering if this GPS can be used to track High Altitude Balloons? Would I be able to find out its realtime location on the computer or can this GPS only transmit data while it is connected to the computer with a wire? Here is a link to the GPS I have in mind:
The only output from the GPS is a wired 9600 baud serial signal via its UART. The GPS does not do wireless transmission of its data. You will need a microcontroller to receive the data form the GPS and send via a radio transmitter in your balloon. Balloon projects come up here once in a while. A search of the forum might yield information to help you.