Cassiopeia E-115
- Operating system: Microsoft Windows CE 3.0 PocketPC edition
- Size: 81.2 mm x 132 mm x 20.1 mm :: 256 g
- CPU: NEC VR4121 MIPS @ 131 MHz
- Memory: RAM 32 MB and ROM 16 MB
- Display: HAST LCD, 240 x 320 Pixel, 65536 colors
- Interface: Serial and IrDA (ver. 1.2)
- Expansion slots: CompactFlash Type I and II
- Battery: Li-Ion rechargeable, up to 6 hours of running time; CR2032 for memory protection
- Input: Touch Screen, Microphone, 3 user-configurable buttons, a control pad.
- Extras: Speaker and Stereo 3.5 mm headphone jack
Casio always advertised the fact that their devices could be updated. Casio decided it would not issue an update for the E-100 and E-105, and a lot of owners of the devices complained. Because of the complaints, Casio offered to update the devices to the newest version of the Operating system if the owners sent in the device and paid a fee. Since the operating system was stored in ROM and not flash memory, the only way to upgrade was by replacing the ROM.
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