1.   For example, they were the first notebook computers with center-mounted trackballs and a built-in wrist-rests.

2.   He said he believes this model is the first notebook to appeal to home PC users.

3.   Hitachi PC Corp. introduced its first notebook for the U.S. market in May, and Compaq broadened its product line in June.

4.   In a sense, Apple is the one playing catch-up here, as this is its first notebook computer to play in the thin-and-light arena.

5.   Sony Corp., which re-entered the computer market last year, said Tuesday it will start selling its first notebook computers under its own name next month.