| Subject | English | Korean |
| comp., MS | back buffer | 백 버퍼 (A nonvisible surface to which bitmaps and other images can be drawn while the primary surface displays the currently visible image) |
| comp., MS | back door | 백도어 (A hardware or software-based hidden entrance to a computer system that can be used to bypass the system's security policies) |
| comp., MS | back end | 백 엔드 (The part of a compiler that transforms source code (human-readable program statements) into object code (machine-readable code)) |
| comp., MS | back-end database server | 백 엔드 데이터베이스 서버 (A server that hosts data, configuration settings, and stored procedures that are associated with one or more applications) |
| comp., MS | back firewall | 후방 방화벽 (A server used as the back line of defense in a back-to-back perimeter network configuration) |
| comp., MS | back reference | 역참조 (" In regular expressions, an element of the form "\dd", where dd represents a decimal value N that matches a sequence of characters in the target sequence that is the same as the sequence of characters that is matched by the Nth capture group.") |
| comp., MS | back-to-back perimeter network | 연속 경계 네트워크 (A network configuration in which two server computers are located on either side of the perimeter network) |
| comp., MS | back up | 백업하다 (To make a duplicate copy of a program, a disk, or data) |
| comp., MS | backing stream | 지원 스트림 (The existing stream, that the new stream will be based on) |
| comp., MS | Be Right Back | 곧 돌아오겠음 (An item on the user's My Status menu that can be selected to indicate that the user is away from the computer but will return shortly) |
| math. | call-back | 재조사 |
| comp., MS | CRM Back End Server | CRM 백 엔드 서버 (A back-end server in CRM that runs the server roles, incl. Asynchronous Processing Service, Sandbox Service, and SharePoint Integration Service) |
| IT | dial-back | 다이얼 백Dial-back |
| comp., MS | front-end/back-end application | 프런트 엔드/백 엔드 응용 프로그램 (" 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.") |
| comp., MS | roll back | 롤백하다 (To reverse changes) |
| comp., MS | write back | 쓰기 저장하다 (To update a cube cell value, member, or member property value) |