During your studies of GCSE geography, you will have used a variety of Geographical Information Systems (GIS for short). For the exams, you are required to be able to use and demonstrate knowledge and understanding of the use of new technologies, including GIS, to assist geographical investigation. That's a bit of a mouthful, but remember, satellite navigation and online mapping services are examples of GIS - all you need to do is to think about the things you can do with them and the data they can supply you in order to pick up some marks.
Before computers, information systems for geographers were limited to paper maps, tables, lists and atlases, and showed information about human and physical geography. The information they supplied could be years out of date by the time you were using it, which limited their usefulness apart from classroom use to teach students the techniques needed to analyse and interpret the geographical data. It was very time consuming.