There are a number of technologies that require a gyroscope. Space technology employs the use of gyroscopes. One such gyroscope is the gyrocompass which seeks north and is used to measure the rotation of the earth. There are other types used in space too. They are also required in aeronautics such as in airplanes.
In addition, they are used on ships. Most any technology that needs to have a navigation requires the use of some form of gyroscope. More uses are being found for them each and every day and advances are being made with them too so you can expect to see even more technological uses for them in the years to come.