| While the terms "laptop" and "notebook" are | | | | are not the dimensions of an A4 sheet. Although, |
| frequently used interchangeably, "laptop" is the more | | | | some more aged portable pc's, like the Macintosh |
| mature term, introduced in 1983 with the Gavilan SC. | | | | Transportable and specific Zenith TurbosPort models, |
| "Notebook computer" is a later coinage, which was | | | | were occasionally referred to as "laptops", their size |
| used to differentiate lesser devices such as those of | | | | and weight were too superb for this class. |
| the Compaq LTE series in 1989, which were, unlike | | | | Notebooks usually run on a single battery or from an |
| prior laptops, the approximate dimensions of an A4 | | | | external AC/DC adapter which can charge the |
| paper sheet.[1] Either term can often be used | | | | battery while also providing power towards the |
| incorrectly: due to heat and other issues, many | | | | personal computer itself. |
| laptops are improper for use on one's lap, and most | | | | |