Explanation:

The personal computer was developed in the 1970s. The first personal computer, the Altair 8800, was introduced in 1975 by a company called MITS. This was a significant technological breakthrough as it allowed individuals to have their own computer for personal use, rather than relying on large mainframe computers.

The digital camera was developed in the 1990s. The first consumer digital camera, the Kodak DC40, was released in 1995. The digital camera revolutionized photography by making it more accessible and allowing for instant image review and editing.

Global positioning system (GPS) was developed in 1970s. The first GPS satellite was launched in 1978 by the US military, and the system became fully operational in 1993. GPS technology allows for precise location and navigation using a network of satellites, and has a wide range of applications including navigation, mapping, and location-based services.