Casio ClassPad series
The Casio ClassPad is a series of graphing calculators produced by Casio which are notable for their use of a portrait display, with a similar aspect ratio to a smartphone.
ModelsEdit
ClassPad 300/300 plus/330/330 plusEdit
Building upon the feature set of the Casio Algebra FX 2.0 series, the ClassPad 300 was released in 2003.