How does structured data differ from unstructured data? Give examples.

Structured data is well-organised data that is arranged in rows and columns, typically found in databases or spreadsheets. It is easy to input, store, retrieve and analyse. For example, a school's timetable or an Excel sheet of student marks.

Unstructured data, on the other hand, does not have a predefined format, making it more difficult to process and analyse. It includes various formats like written documents, pictures, audio recordings and videos. For example, photos saved on a phone or text messages sent to friends.