All Palms operate using an original Palm operating system. Some LCD screens come backlit, and most operate using a touch screen and stylus. There are some models that come sleek and ultra slim, and may include an infrared wireless port. Some Palms work with both Macs and PCs, while others are only PC compatible. Accessories like attachable full-size keyboards for data entry and Back Flip for email access are available for most Palms.
Palms operate using regular alkaline batteries.
Pocket PC Pocket PCs are a relatively recent advancement in the electronic organizer community. They come with 16MB of RAM and a 150MHz processor. Most models come with a slot that accepts Multimedia Cards with up to 64MB of storage. Pocket PCs only work with PCs via a USB interface, and run on a rechargeable Lithium-Ion battery. Handspring Handspring palmtops operate similar to Palms.