| Subject | English | Spanish |
| IT | basic control system satellite | satélite de sistema básico de control |
| IT | basic control system satellite | satélite BCS |
| org.name. | Basic Elements of Land Tenure Systems | Elementos básicos de los sistemas de tenencia de la tierra |
| transp., avia. | basic flight control and display system | sistemas básicos de control de vuelo y presentación |
| tech. | basic hole system | sistema de ajustes con agujero único |
| tech. | basic hydraulic system | sistema hidráulico básico |
| IT | Basic Input Output System | sistema de base de entrada-salida |
| IT | Basic Input Output System | Sistema de entrada-salida de base |
| comp., MS | basic input/output system The set of essential software routines that test computer hardware at startup, start the operating system, and support the transfer of information between hardware devices. The BIOS is stored in read-only memory (ROM) so that it can be run when the computer is turned on. Although critical to performance, the BIOS is usually invisible to computer users | sistema básico de entrada y salida (BIOS) |
| IT | basic input-output system | sistema básico de entrada/salida |
| comp. | basic input/output system | sistema básico de entrada y salida (BIOS) |
| dat.proc. | basic operating system | sistema operativo de base |
| med. | basic radiological system | sistema radiológico básico |
| tech. | basic shaft system | sistema de ajustes con eje único |
| commun. | basic system model | modelo básico de un sistema |
| commun., IT | basic system module | módulo básico de sistema |
| el. | basic uni-directional system | sistema básico en un solo sentido |
| IT | Commission for Basic Systems | Comisión de Sistemas Básicos |
| org.name. | Commission for Basic Systems | CSB |
| commun., IT | network basic input/output system | Sistema de E/S básico de red |
| commun., IT | network basic input/output system | Sistema de Entrada/Salida Básico de Red |
| commun., IT | network basic input/output system | sistema básico de E/S de red |
| comp., MS | network basic input/output system | sistema básico de entrada y salida de red (An application programming interface (API) that can be used by programs on a local area network (LAN). NetBIOS provides programs with a uniform set of commands for requesting the lower-level services required to manage names, conduct sessions, and send datagrams between nodes on a network) |
| IT | NETwork-Basic Input/Output System | Sistema de entrada-salida de red básica |