Distinct from Materials, which are generic/quantityless/have many suppliers like screws and nails, Parts are individual components typically available for purchase -- usually a part will have a single product id or webpage for purchase, where a material has many that are mostly equivalent.
|Batteries||Rechargeable and not, storage of power|
|Cameras||Digital video cameras, webcams, etc.|
|Computers||Computers and computer parts, including single-board computers, microprocessors, and individual computer components like graphics cards, Raspberry Pi HATs, etc.|
|Fluids||Tubing and reservoirs and materials for managing liquids|
|Passive Components||Passive electronic components like resistors, transistors, solenoids, and so on|
|Speakers||Loudspeakers, passive and active|
|Structural||Parts for building things, supporting structures, latches, hinges, etc.|