You may occasionally go back and enter new data and a new results calculated. But, like the drawing program and word processor it too is fairly inert. A computer database is, as the name implies, a collection of data stored within a computer. It is like an electronic file cabinet full of documents. What makes computer databases useful is the ease with which the data can be entered, stored and manipulated.
Unique data needs to be entered only one time.
From then on it can be used to create lists, summaries, reports, letters, labels and many other things limited mainly by the imagination of the user. Before data can be entered into a database, the database must be designed. A layout or set of layouts, some times called templates, are created. Within these layouts are data fields. Usually a label is associated with each data field.