System Delta - The Card Index Application (19xx)(-)(Side 1)[b] ROM Download for BBC Micro (BBCM). System Delta - The Card Index Application (19xx)(-)(Side 1)[b] game is available to play online and download only on Roms Games. System Delta - The Card Index Application (19xx)(-)(Side 1)[b] ROM for BBC Micro download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.