Safety razor become locked into buying their proprietary cartridges, for as long as the manufacturer continues to make them. Subsequent to introducing the higher-priced Mach3 in 1998, Gillette's blade sales realized a 50% increase, and profits increased in an otherwise mature market. The marketing of increasing numbers of blades in a cartridge has been parodied since the 1970s. The debut episode of "Saturday Night Live" in 1975 included a parody advertisement for the Triple Trac Razor, shortly after the first two-blade cartridge for men's razors was advertised. "Mad" magazine announced the "Trac 76", arranged as a chain of cartridges with a handle
Trilogic Expert Cartridge RAM that could be reprogrammed. And thus allowed the user to change its functionality. The author of the Expert cartridge default firmware is John Twiddy who also wrote the games The Last Ninja and Ikari Warriors for the Commodore 64. He claims that it saved him many months of programming. Trilogic Expert Cartridge The Expert Cartridge from the UK company Trilogic was a popular extension cartridge which was introduced in mid-1986 for the Commodore 64 and a later Commodore 128 compatible version, It offered a "fast loader", increasing the speeds of the disk drive, and a "freezer", allowing the program