| Subject | English | Bulgarian |
| comp., MS | basic input/output system | базова входно-изходна система (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) |
| construct. | basic system | основна система |
| comp., MS | network basic input/output system | мрежова базова входно-изходна система (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) |