X-1

X-1 typically refers to a specific model of a device, system, or concept depending on context; for example, it could be a version of a product, a code name for research projects, or an identifier in technology. Without additional details, it’s difficult to specify exactly what X-1 represents. Generally, “X-1” signifies a version or iteration, often the first or a prototype, used to classify or distinguish it from other versions. If you can provide more context about where or how X-1 is used, I can offer a more precise explanation.