Early System 1 boards and cartridge boards used large numbers of 7400 series TTL chips.
operating system | Atari | Super Nintendo Entertainment System | Nintendo Entertainment System | Android (operating system) | Global Positioning System | Solar System | X Window System | Atari ST | Korean Broadcasting System | System of a Down | Domain Name System | Seoul Broadcasting System | North Carolina Community College System | Mutual Broadcasting System | Bulletin board system | system | Turner Broadcasting System | Program and System Information Protocol | Geographic information system | Ubuntu (operating system) | Tokyo Broadcasting System | Federal Reserve System | Youth system | Embedded system | Atari 2600 | solar system | Seigneurial system of New France | Interstate Highway System | Fedora (operating system) |