Editing Pocket Viewer (section)

==Notes==
* The [[HP 200LX]] a palm top computer, also used an 80186 chip
* The [[Casio ClassPad 300]] is a maths orientated update of the pocket viewer.
* Casio did not provide any official linux support. Casio had contracted a 3rd party vendor for PC communication, and hence could not disclose any internal communication protocols. Apart from Casio PC sync and Enterprise Harmony, shareware Xlink/Win<ref name="Xlink">{{cite web|url=http://www.imslsoft.com/casioinf.htm|author=imslsoft|title=Casio Digital Diary information center|work=imslsoft|date=|accessdate=2010-01-09}}</ref> also provides communication with windows. An open-source GPL Linux application by the name PVlink is available with limited guarantees.
* Since Casio PVOS was a small proprietary OS, it did not benefit from mainstream platform support that Linux, or other proprietary OSes such as [[Pocket PC]] or [[Palm OS]] had.{{cn|date=May 2025}}