Systems Williams System 4 History Tools An incremental update to Williams System 3, introduced in 1978, retaining the 6800-family CPU. Games include Phoenix (1978) and Pokerino (1978). The update primarily addressed minor hardware revisions and manufacturing improvements. Titles using Williams System 4 (4) Flash Williams, 1979 Stellar Wars Williams, 1979 Phoenix Williams, 1978 Pokerino Williams, 1978