1. The number of keys. In addition to the 101 and 104 keys of the programmable keyboard, there are 60 and 78 keys. It should be said that there is no standard, and the number of keyboards can be determined according to the needs of the developer.
2. Arrangement of keyboard. The alphabetical arrangement of the programmable keyboard does not have a relatively fixed pattern like the conventional keyboard, which can reflect more personalization and professionalism.
3. Definition of keys. The programmable keyboard can redefine multiple times for each key. Can be defined as text, letters or a command. Each keyboard will come with a corresponding programming program, easy to learn.