What is GIS and is it the same as Geospatial data?

A Geographic Information System (GIS) is a computer system and/or software built to manage and display all kinds of spatial or geographical data.

Geospatial data is the geographic information that identifies the location (where things are) and details of features on earth (descriptive information including measurements). Things such as oceans, trees, roof tops, road signage and so on can all be digitised, so the data can be analyzed and turned into maps, models and useful information for multiple industries.