| Subject | English | Bulgarian |
| comp., MS | Compact Disc File System | файлова система на компактдиск (A 32-bit protected-mode file system that controls access to the contents of CD-ROM drives) |
| comp., MS | Distributed File System | Система на разпределени файлове (A service that allows system administrators to organize distributed network shares into a logical namespace, enabling users to access files without specifying their physical location and providing load sharing across network shares) |
| comp., MS | Encrypting File System | Система за шифроване на файлове (A Microsoft file-based encryption technology that enables users to encrypt files and folders on NTFS volumes. EFS helps protect the confidentiality of data by ensuring that only authorized users can decrypt the encrypted files or folders) |
| comp., MS | file system | файлова система (In an operating system, the overall structure in which files are named, stored, and organized. NTFS, FAT, and FAT32 are types of file systems) |
| comp., MS | file system cache | кеш на файловата система (An area of physical memory that holds frequently used pages. It allows applications and services to locate pages rapidly and reduces disk activity) |
| comp., MS | Live File System | файлова система на живо (A file storage system that can be used to create CDs and DVDs. Discs formatted with Live File System allow you to copy files to the disc at any time, instead of copying (burning) them all at once) |
| comp., MS | mounted file system | монтирана файлова система (A file system located on a removable medium, such as a PC Card storage device. The operating system loads, or mounts, the file system when the medium is inserted into the device. It unloads, or unmounts, the file system when the medium is removed or when the user issues a command to do so) |
| comp., MS | NTFS file system | файлова система NTFS (An advanced file system designed for use specifically with the Windows NT operating system. It supports long filenames, full security access control, file system recovery, extremely large storage media, and various features for the Windows NT POSIX subsystem. It also supports object-oriented applications by treating all files as objects with user-defined and system-defined attributes) |
| IT | personal data filing system | система за архивиране на лични данни |
| pharma. | pharmacovigilance system master file | основна документация на системата за фармакологична бдителност |