Psion Siena Organiser

General specifications
Type Organiser
Production years 1996 - -
New price -
Operating system EPOC16
Chipset/CPU NEC V30H @ 7.68 MHz
I/O RS-232, expansion port
Performance index
Entry method Algebraic with precedence
Precision digits
Advanced functions

Forensic result -

Organiser: Psion Siena
Programming model OPL (Organiser Programming Language)
Programming features

Program display Text
Program editing Text editor
Programming 1 MB
Data 1 MB
Type LCD
Size 240160 pixels
LWH 17817825 mm
Weight 183 g
Batteries 2AAA + 1CR1620
External power -
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Two versions of the Siena were released, one containing 512KB of memory and the second with 1MB.

Because the Siena is byte compatible with the 3 series, all applications are interchangable. Most applications have been tweaked however to make the most of the limited memory and screen size of the Siena.

Even though the processor is only running at ~7MHz, I have never found the Siena to be slow. The Psion engineers have done a fine job in creating a full GUI interface into a device of this small size.

The Siena, like all other Psion devices, is programmable via the embedded Organiser Programming Language (OPL). OPL was first developed for the Psion II Organiser in 1986. After Psion retired from the PDA market, the project was changed to open source. The language is now developed on SourceForge in the opl-dev project.

The build-in calculator application is not the most advanced. Most advanced functions are however available or can be created through the OPL programming language.


Organiser: Psion Siena

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This page was last modified on October 31st, 2008

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