Wired logic gates do not produce physical second-level gates primarily to reduce costs, especially when transistors were expensive. By wiring several collectors together, the gates could function with fewer inputs while maintaining multiple outputs. This setup allowed for the implementation of AND and NAND functions using a single input. Wired connections are also utilized in communication protocols like Ethernet and CAN, where they facilitate signal transmission and collision detection or avoidance. Overall, the design choices reflect a balance between functionality and economic efficiency in circuit design.
