The different types of BOMs depend on the business need and use for which they are intended. In process industries, the BOM is also known as the formula, recipe, or ingredients list. In electronics, the BOM represents the list of components used on the printed wiring board or printed circuit board. Multi-Level Bill of Materials (BOM), or referred as an indented BOM, is a bill of materials that lists the components, assemblies, and parts required to make a product.
A Bluetooth Dongle adapter is a Bluetooth adapter that connects to your computer via USB port. It is different from other Bluetooth adapters that can be installed inside your computer, and as such, enjoys much greater popularity than other, more expensive and less user-friendly Bluetooth adapters.
A device that attaches to a computer to control access to a particular application. Dongles provide the most effective means of copy protection. Typically, the dongle attaches to a PC's parallel port. On Macintoshes, the dongle sometimes attaches to the ADB port. The dongle passes through all data coming through the port so it does not prevent the port from being used for other purposes. In fact, it's possible to attach several dongles to the same port.