French companies extended the Minitel platform with new kinds of terminals and peripherals. Terminals with built-in memory functions, chip-card readers, and high-resolution color displays began appearing on the market. Most Minitel terminals featured a serial port and multiple display modes, enabling users to connect the terminal to a printer, credit card reader, or PC. For small business owners, this flexibility transformed the Minitel terminal into a low-cost point-of-sale system. And long before the Internet of Things, Minitel was incorporated into a variety of home-automation schemes, allowing remote control of heaters, VHS recorders, security alarms, and sprinklers.