The portable microcomputer, called the "Portal," from the French company R2E Micral CCMC, officially appeared in September 1980 at the SICOB show in Paris. The Portal had a keyboard with 58 alphanumeric keys and 11 numeric keys (separate blocks), a 32-character LED screen, a floppy disk drive, a printer and a 220V power supply. It weighed 12 kg (26 pounds) and its dimensions were 45 cm × 45 cm × 15 cm (18 in x 18 in x 6 in). It had no hinge and its operating system was Prolog.