Home appliance;

Some types of brown goods were traditionally finished with or looked like wood or bakelite. This is now rather rare, but the name has stuck, even for goods that are unlikely ever to have been provided in a wooden case (e.g. camcorders). White goods were typically painted or enamelled white, and many of them still are. The addition of new items to these categories shows that the categories still serve a purpose in marketing.
This division is also noticeable in the service area of these kinds of products. Brown goods usually require high technical knowledge and skills (which get more complex with time, such as going from a soldering iron to a hot-air soldering station), while white goods need more practical skills and "brute force" to manipulate the devices and heavy tools required to repair them.
There is usually a problem with microwave ovens, because these sell alongside refrigerators and dishwashers, but microwave ovens contain complex electronic boards (the clock and controller) which white-good servicemen refuse to repair (as they don't have the training or tools required to do so).
Some brands send whole boards for replacement, and some have them repaired by such technicians.