G/G/1 Queue

A G/G/1 queue is a mathematical model used to describe systems where customers or jobs arrive randomly over time, are served one at a time, and have general (non-specific) arrival and service time distributions. "G" stands for "general," meaning these times can follow any pattern, not necessarily fixed or predictable. The "1" indicates there is a single server. This model helps analyze how long customers wait, how busy the system gets, and overall performance, providing insights into complex, real-world scenarios like checkout lines, network servers, or manufacturing processes.