{"wikiid":644852,"langid":"en","namespace":"CATEGORY","title":"Pinball Machines","revisionid":1452250,"contents_raw":"The mid-1970s (roughly 1977) saw the birth of Solid State machines. Instead of thousands of feet of wire and hundreds of mechanical switches, machines began using Integrated Circuits (ICs) and Microprocessors.\n\n* The MPU (Microprocessor Unit): Early 80s legends like Williams and Bally used the Motorola 6800 or 6808 8-bit processors. These \"brains\" allowed for complex logic, such as remembering a player's score after a \"tilt\" or carrying over bonuses between balls\u2014something nearly impossible for mechanical machines.\n* Digital Displays: The 70s ended the era of spinning \"score reels.\" They were replaced by Gas Discharge (Nixie-style) or Vacuum Fluorescent Displays (VFD). These orange-glowing digits were a revelation, as they didn't have moving parts that could jam or wear out.\n\n=== The 1980s Sound Revolution ===\n\nThe early 80s brought \"speech\" to the arcade. Machines like Williams' ''Gorgar'' (1979) were the first to talk, using a very limited vocabulary synthesized by dedicated sound chips.\n\n* Dedicated Sound Boards: By the mid-80s, machines had separate audio boards (like the Yamaha YM2151 FM synthesis chip) that could play full musical scores and high-fidelity sound effects, a massive jump from the simple \"chimes\" and \"beeps\" of the 70s.\n* Speech Synthesis: This era utilized ADPCM (Adaptive Differential Pulse Code Modulation) to compress human voices into the tiny amounts of ROM available (often only 32KB to 128KB of memory).","contents_json":{"type":"doc","content":[{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[]},{"type":"paragraph","content":[{"type":"text","text":"The mid-1970s (roughly 1977) saw the birth of Solid State machines. Instead of thousands of feet of wire and hundreds of mechanical switches, machines began using Integrated Circuits (ICs) and Microprocessors."}]},{"type":"bulletList","attrs":[],"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"The MPU (Microprocessor Unit): Early 80s legends like Williams and Bally used the Motorola 6800 or 6808 8-bit processors. These \"brains\" allowed for complex logic, such as remembering a player's score after a \"tilt\" or carrying over bonuses between balls\u2014something nearly impossible for mechanical machines."}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Digital Displays: The 70s ended the era of spinning \"score reels.\" They were replaced by Gas Discharge (Nixie-style) or Vacuum Fluorescent Displays (VFD). These orange-glowing digits were a revelation, as they didn't have moving parts that could jam or wear out."}]}]}]},{"type":"heading","attrs":{"level":3},"content":[{"type":"text","text":"The 1980s Sound Revolution"}]},{"type":"paragraph","content":[{"type":"text","text":"The early 80s brought \"speech\" to the arcade. Machines like Williams' "},{"type":"text","text":"Gorgar","marks":[{"type":"italic"}]},{"type":"text","text":" (1979) were the first to talk, using a very limited vocabulary synthesized by dedicated sound chips."}]},{"type":"bulletList","attrs":[],"content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Dedicated Sound Boards: By the mid-80s, machines had separate audio boards (like the Yamaha YM2151 FM synthesis chip) that could play full musical scores and high-fidelity sound effects, a massive jump from the simple \"chimes\" and \"beeps\" of the 70s."}]}]},{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"Speech Synthesis: This era utilized ADPCM (Adaptive Differential Pulse Code Modulation) to compress human voices into the tiny amounts of ROM available (often only 32KB to 128KB of memory)."}]}]}]}]},"contents_rendered":"

The mid-1970s (roughly 1977) saw the birth of Solid State machines. Instead of thousands of feet of wire and hundreds of mechanical switches, machines began using Integrated Circuits (ICs) and Microprocessors.<\/p>\n\n