2. Trace Vs GPS

When Potter was under 17, he was put on with a charm called as Trace in Hogwarts School, which allowed the Ministry of magic to track the activities of the junior witches in their vicinity.

Come out of the fictitious world, we have advanced version than Trace, and it is GPS (GLOBAL Positioning System) that provides both location and time information in all situations anywhere on Earth. GPS is serving the purpose for civil, military and commercial usage around the world.

3. Room of Requirements Vs Cloud Storage

Do you remember where Harry and his friends used to keep their personal and secret things? It was the room of requirements, it may be present and it may be not, depending on the seeker’s need.

Cloud Storage is one such modern technology where one can store and access their valuable data as per their purpose and with due respect to concerned authorities, the data is kept safe and only the concerned person is allowed to access the data.