Rockwell PPS-4 - Gaming Goes Digital - Gotteib, Pinball, Dragon, 11660EC

About this Artwork: Introduced in 1972, like the Intel 4004, the PPS-4 (Parallel Processing System-4) was just a 4-bit microprocessor. The PPS-4 was just the third microprocessor created. Gottlieb worked with Rockwell to develop the System 1 CPU board, which was based on the 199 KHz PPS-4/2. Gottlieb used this board in its solid-state pinball machines from 1977 to 1980. Rockwell also used four of its other "spider" chips as part of the System 1 chipset. The game program was stored on a ROM chip on the CPU board. Gottlieb's first microprocessor-based pinball game was Cleopatra. It was quickly followed with other games such as Sinbad, Dragon, Charlie's Angels, Incredible Hulk, and Buck Rogers. There were 16 in all. These were first family of gaming machines to successfully use a common microprocessor and system board.The PPS-4 is unique among the early microprocessors in terms of packaging. This is one of the neatest looking chip packages ever created. It looks like a spider because of i