keyboards

O Notebook and netbook computers usually have a keyboard that is similar to a desktop keyboard, but it is typically smaller, contains fewer keys. O It can also connect a conventional keyboard to make inputting data easier through an appropriate port (such as a USB port). O Increasingly, ultra-mobile PCs (UMPCs) and mobile devices today have a built-in keyboard. O These can be slide-out keyboards that are revealed when needed and hidden when not in use.