gen1

Gen1, short for Generation 1, is an informal label used to denote the first generation of a product line, model, or media franchise. It is used across fields such as entertainment, technology, and consumer electronics to distinguish it from later generations (Gen2, Gen3, etc.).

In popular culture, Pokémon Generation I (Gen I) refers to the first set of Pokémon games in the series: Red and Green/Blue and Yellow, released beginning in 1996 in Japan and later in 1998–1999 in North America and Europe for the Game Boy. It introduced 151 Pokémon, the Kanto region, and foundational gameplay elements such as turn-based battles, catching and training Pokémon, trading via link cable, and a basic type matchup system.

In technology, the term Gen1 is frequently used to describe the initial release of a product line, serving as the baseline from which later generations are derived. Examples include the original iPhone, which is often described as Gen 1 of the iPhone lineup, as well as the first generation of many other devices and consoles.

Overall, Gen1 denotes the initial generation in a sequence and serves as a reference point for distinguishing subsequent generations. The label is widely used across domains, with each field defining its first generation according to its own products and timelines.