1. The external or peripheral parts of a machine, device, or system that form the outer layer or surface
The outer components of the smartphone include the screen and the casing.
Os componentes externos do smartphone incluem a tela e a carcaça.
2. In technical contexts, parts that are located on the exterior and interact with the external environment
The outer components must be weather-resistant in automotive design.
Os componentes externos devem ser resistentes ao tempo no design automotivo.