Using and Programming the Psion Organizer II: A Complete Guide

Product Information

Partridge, Chris (8 July 2003). "Psion prepares the way for the one true OS". Computing. VU Net. Archived from the original on 30 September 2007 . Retrieved 17 June 2007. delimit consecutive outputs), then we update the last known byte to whatever we just read and loop again. to insert "datapaks". These are UV-erasable EPROMs which can be used to store code and data. The Psion has a weirdo "write-only"

Next you are prompted for the name of the file on the PC that you want to receive. It need not include a file name extension, as that can be deduced from the file type. See the description below for the possibilities and limitations of the file name. Type the remote file name and press EXE.Needham, Mark (19 February 2004). "We Remembered Psion and Wept" (PDF). PC Pro . Retrieved 22 February 2012. In 2004, Psion disposed of the company's remaining Symbian shareholding to Nokia, as they no longer regarded it as a core part of their strategy. [8] Last years (2010–2012) [ edit ]

to the "reader" that it wants to swap roles, and then both sides invert their bus direction. I'm not sure if we'll need to do this, but The Organiser II was widely used for commercial applications in companies such as Marks & Spencer, where it was used on the shop floor, with their branding instead of Psion's and with only limited keys visible to the end user. It was also used in the world's first large-scale application of mobile technology in government, where over 3,000 were used for benefit calculations by the Employment Services department of the UK government. It proved popular with surveyors who interfaced it with electronic theodolites, which proved to be the precursor to the now popular total station. The main loop reads a byte from the top slot. If the value is different to the last known value, then it reads again. If this secondThe Psion Series 3mx was the last upgrade in the popular 16-bit (SIBO) Series 3 line. Announced in July 1998, after the release of the 32-bit (EPOC) Psion Series 5, the 3mx is essentially an upgraded Series 3c. The 3mx comes in two models: 1 MB and 2 MB. well, 'elegance' might be overdoing it a bit. With a mixture of skill, cunning and brute force (read: a vague plan and a pair of scissors) I have equipped my Raspberry Pi 3 with a 25-pin serial 'port'. Essentially I removed the old 9-pin female connector from the RS232/TTL converter I was using with a 25-pin male connector. This means that all the fiddling about poking wires into serial connectors is no longer necessary, as I can just plug the Comms Link into the Pi for lovely reliable 1200-baud communication :) lines, but high enough that it doesn't interfere when the datapaks or CPU are trying to write to the bus. It's a really simple solution Having determined that 2 consecutive reads got the same value, we print the byte to the screen unless it's 0 (which is used to

But in the 1990s the Organiser 3 was competing with rival devices such as the Apple Newton, devices from Palm Computing, and increasingly mobile phone makers such as Motorola and Nokia. A menu appears with the options FILE, PROCEDURE, and possibly NOTES. To receive a data file such as A:MAIN, choose FILE. To receive a procedure (source code only), choose PROCEDURE. The NOTES option will only be available if you are using an LZ/LZ64 Organiser and a 4-line version of the Comms Link. Choose the NOTES option to receive an LZ notepad file. print them to the screen, and observe that they changed when I pulled one of the pins on the bus high:

3. Using the Comms Link

The Psion Series 3mx and Series 3c have a similar overall external appearance, except the 3mx sports a matte silver metallic paint covering, rather than the dark grey finish of the 3c. and "output enable" preferably) and only tries to assert anything to the bus when the top slot is selected, and the CPU is trying to read