Category: Computing

I have a Psion organiser II Cm from around 1986, a lovely blast from the past piece of technology that for a period of time, put the UK ahead of the world in electronic storage and retrieval technology. For an item that is thirty nine years old it was way ahead of its nearest rivals in both looks and capabilities. Let’s be honest the biggest selling data retrieval system prior to this coming along would have been the good old fashioned Filofax. It really was a game changer.

My personal organiser is in good condition. I’ve had it for about a year now. It has no known faults so I’ve not done this post to show a repair, I have created this post to highlight, just like us all, that the older we get the more care we have to take of ourselves, the same goes for this machine. There is a whole online community still committed to this equipment and the amount of knowledge available to anyone looking at getting one of these items is absolutely immense. Just look here: Psion Organiser II forum

My organiser is a CM version. It has a memory of 8 KB. Data packs can be added, mine has a 16 and a 32k pack so I have a whopping 48k of available additional memory. Extra storage is available between 16-128k again dependant on the limits of your unit.

This version, the CM was a victim of the Y2K bug that you will be more than aware of, if you are of a certain age and possessed a computer on the run up to the year 2000. Panic reigned supreme around this time, the world was about to end. It was a crazy time. For some it was just that, plain crazy and nothing noteworthy occurred, for others they will say it was a whole different story. However it wasn’t all that bad as we are all still here today. That said some units were rendered useless as their date ranges didn’t exceed beyond the year 1999, and that is where this particular model of the Psion organiser slots in to place.

It has that very issue as does the XP version, later editions such as the LZ did not have the issue.

I’ve created a very small video here that replicates exactly what occurred when midnight on the 31st December 1999 finally arrived.

In a nutshell it resorted back to the year 1900. Some computers freaked out, others that had been attended to had fixes deployed that added extra years to the internal data streams. And we can also do that with this unit today.

All we have to do is visit the site of Jaap Scherphuis who has provided the download to enable users to now extend the date range by another 84 years to 2083. My time on this planet will be done by then so I’m not that worried about what happens beyond this time period. I have quoted exactly what this little fix achieves, below.

When it is installed the main menu item TIME is redirected to the memory resident routine. This routine is identical to the normal one in ROM, except that it adds 84 to the year, making the range of the available years 1984 to 2083 instead of 1900 to 1999. This new range is chosen because these years have the same weekdays.

Jaap Scherphuis

To achieve this fix there are three ways that it can be achieved, either as a direct entry set of commands via a serial cable link to the top of the unit via a computer, direct entry via the unit programming mode, or by using a programmed data pack. I do not have the link, and I possess “Sausage fingers“ so I don’t trust myself to type the detail in correctly, so I will be using the latter option, i am cheating with one of these.

A vendor used to sell these on eBay. They are data packs that contain the very Y2K patch I need, as well as a few other little nuggets of interest all on a preloaded pack. There is an aside to this particular fix. As it is stored in the local memory, should the battery die, or be taken out to be replaced you will lose this fix and it will need to be reinstalled. With Psion, any hard data you wish to keep, has to be saved to one of the data packs, if you don’t you will simply lose your data, no auto save ability here.

So if the battery does die or get removed, with this pack it can be quickly restored to normal use in a couple of minutes with no need to involve other computers or peripherals.

I have now installed the new TIMEINST routine that adds the extra years into the the units memory and it is now usable for the next 78 years (For someone, not me though, as I won’t be around!)

So this is my Psion up and running. I don’t claim to know much about the technical side but I’m learning. If I can assist anyone in any way, whether that is by directing you to someone who knows, or by taking you through what I have done here, then please make contact. I will assist you however I can.

Thanks for passing by.