In 1964, the System/360 family of computers was launched by IBM. The System/260 replaced transistors with integrated circuit, or solid logic, technology. Over thirty thousand units were sold, and a new era in computer technology had begun. A month after System/360 was introduced, the first BASIC program was run at Dartmouth College by its inventors, Thomas Kurtz and John Kemeny. BASIC was to become the introductory language for a whole generation of computer users.