A computer made by Commodore computers in the mid-80's. It featured 128k of RAM, and was downward-compatable with the C64, it's smaller brother. It never did very well because a strong customer base had been built on the C64, and people preferred buying the cheaper C64 than buying the C128 just to use c64 software. It also featured a much faster disk drive (Commodore were infamous for slow drives) and an improved BASIC and operating system.