The Plus/4 was the flagship computer of the line. The Plus/4 had of RAM while the C16 and C116 had . The Plus/4 had built-in software, whereas the others did not. The Plus/4 and C16 had full-travel keyboards; the C116 used a rubber chiclet keyboard that was still superior to the flat membrane keyboards used on less-expensive Timex-Sinclair computers. The C116 was only sold in Europe. All of the machines were distinguished by their dark gray cases and light gray keys. This was a reversal of the color scheme on the C64 and VIC, which used lighter cases and darker-colored keys.