A number of programs will require the user to provide information. In some cases if the user chooses not to enter a value a "default value" will be taken. If for instance you have a Database in which you record the names & addresses of all your customers & nearly all of them are based in the UK you can set the database up such that if a country is not entered then it will be defaulted to the UK.
DEFAULT VALUE
Meaning of DEFAULT VALUE in English
English glossary of Internet and PC terminology. Английский глоссарий Интернет и ПК терминологии. 2012