palmtop computerinformation page
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A subnotebook (also known as a palmtop, a kneetop or an ultraportable) is an extremely small and lightweight portable computer, with all features of a standard laptop computer and running all its applications. Its overall size is much smaller than an A4 paper notebook (8.27"×11.69"), but somewhat larger than a handheld computer. Hence it often has smaller than 10" (diagonal) screen and weigh less than 1kg; as opposed to full-size laptop with 15" screen and weighing 2kg or more.
Contents
- 1 History
- 2 Recent models
- 3 Other examples
- 4 External links
- 5 See also
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History
The earliest subnotebooks were the Poqet PC and the Atari Portfolio, which were both released in 1989 and ran DOS. In 1996, the Toshiba Libretto 20 was first released with 6.1" screens, 270MB hard disk, weighing 840g and running on Windows 95. In 1997 Hewlett Packard and Casio launched a very sophisticated range of handheld palmtop PCs running Windows CE.
Recent models
Examples of recent subnotebooks sorted by weight are:
| Model |
Specifications |
Dimensions (mm) |
Mass (g) |
Year |
| Sony Vaio PCG-U3 |
Transmeta TMS 5800 933 Mhz CPU, 256 MB RAM, 20 GB hard disk, 6.4" XGA display |
184.5 x 139 x 30.6 |
820 |
2004? |
| Fujitsu Lifebook P1510 |
Intel Pentium M 1.2 GHz CPU, 512 MB RAM, 60 GB hard disk, 8.9" SVGA display |
232 × 167 × 34.5 |
990 |
2005? |
| Toshiba Libretto U100 |
Intel Pentium M 1.2 GHz CPU, 512 MB RAM, 60 GB hard disk, 7.2" LCD display |
210 x 165 x 29.8 |
999 |
2005 |
| Panasonic R4 |
Intel Pentium M 1.3 GHz CPU, 512 MB RAM, 60 GB hard disk, 10.4" XGA display |
229 x 183.5 x 24.2 |
999 |
2005 |
| Fujitsu Lifebook P1120 |
Transmeta TMS 5800 800 Mhz CPU, 256 MB RAM, 30 GB hard disk, 8.9" SVGA display |
231 x 158 x 34.5 |
1000 |
2003? |
| Dell Latitude X1 |
Intel Pentium M 1.1 GHz CPU, 512 MB RAM, 30 GB hard disk, 12.1" WXGA display |
287 x 196 x 25.4 |
1130 |
2005 |
Other examples
- NEC MobilePro 900, comes with a 8-inch screen, weighs 1.8 pounds, runs on a 400MHz Intel XScale processor, and comes with an optional 10- to 16-hour battery. It runs a PDA operating system (Pocket Windows), and comes equipped with pocket versions of Microsoft's Office applications.
- The Sharp Actius PC-MM10, it's about a half-inch thick. It has a 1GHz Transmeta CPU, 256 MB of memory, a 15 GB hard drive, and built-in Wi-Fi.
Other recent models include the Sony U-series, OQO, and Vulcan FlipStart.
External links
- What is subnotebook computer? - Webopedia single paragraph definition.
- Subnotebook computer - Computer Hope single paragraph definition.
- How to buy a notebook PC - classifies subnotebook as "3-pound ultraportables that rely on external drives".
- Laptop buying guide - defines ultraportable as "Weight: 4 pounds or less ... Display: Smaller than 12 inches (diagonal)".
- First, what is a subnotebook? - a section of an article reviewing a subnotebook, NEC Versa UltraLite, defines it as "trimmed down to just a display, a keyboard, a hard drive, and a few vital data ports".
- The Fujitsu LifeBook P1120 Notebook - Transmeta success story article.
- Sony PCG-U3 - Dynamism article.
- Panasonic R4 Review - NotebookReview August 31, 2005 article.
- Dell Latitude X1 Review - Cnet article.
See also
Look up palmtop in Wiktionary, the free dictionary
- List of computer size categories
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