Mystery photo

Seems there’s a large gap in my education.
[waits for obvious response(s)]

Well, you’re from Oop North.

The rhyming slang (minus the bits everybody knows) was designed in order to make the message near unintelligible to the uninitiated, especially the rozzers.

A bit of cockney rhyming slang here

The switch is connected via a 22k resistor to GP5 so that it can pull it down (closed) or leave it high (open) (so that it can be read at boot time) but leaves GP5 able to be used as an input or output at other times and the switch is also connected via a 680nF capacitor to the ‘run’ line. The other side of the switch is connected to GND.

The practical effect is that if it is moved to the right it causes a reset and if it is standing left or right during a boot that selects whether to boot up in RISC OS (left) or Linux (right).

The method of setting up dual boot firmware is described here

It’s cockney rhyming slang; so, similar to Jodrell?

The answer may well be in the next issue of Archive.

and a dual boot 4te will be demonstrated at the London show.