| Subject | English | Polish |
| IT | back-end | procesor końcowy |
| comp., MS | back-end application | aplikacja wewnętrzna (In a client/server application, the part of the program that runs on the server) |
| comp., MS | back-end database server | serwer wewnętrznej bazy danych (A server that hosts data, configuration settings, and stored procedures that are associated with one or more applications) |
| comp., MS | CRM Back End Server | serwer wewnętrzny programu CRM (A back-end server in CRM that runs the server roles, incl. Asynchronous Processing Service, Sandbox Service, and SharePoint Integration Service) |
| comp., MS | front-end/back-end application | aplikacja zewnętrzna/wewnętrzna (" An application consisting of a "back-end" database file that contains tables, and copies of a "front-end" database file that contain all other database objects with links to the back-end tables.") |