Shoot, Store and Show. Simple enough to operate, senior friendly, or any age friendly, even for your Grandchildren. The Sony Mavica, has all the bells and whistles, with several models to choose from and with up to 1.3 million Megapixels. Pepper is a funny spice, really three spices in one, each with a different flavor. The black is dried berries, sold whole to be ground in a pepper mill, or cracked or ground by spice companies and as with other spices, always best when ground fresh.
White peppercorns are the black minus the wrinkled black outer layer and minus much of the flavor.
Some people feel it is more refined to use white in sauces so that you don't have black specks. Battery operated, these sleekly designed mills, are push button operated with a fully, adjustable grinder for fine or coarse pepper. If the batteries go down, you can operate them manually. One of the important features, I liked, was the clear window base that gives you a visual for the amount of peppercorns left. Several styles and models are available at better stores everywhere.