heterogeneous equipment; dissimilar equipment
Technical term used in IT, networking, and engineering contexts to describe systems or devices of different types or from different manufacturers.
A common protocol is necessary for data integration between heterogeneous equipment.
This system operates stably even in a mixed environment with dissimilar equipment.
heterogeneous environment
Compound of 異 (i, 'different') + 機種 (kishu, 'model' or 'type of equipment'). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation patterns.