Technical stuff (2)

copyright North Somerset Museum 2003

This material is scanned from the papers held by the museum with their permission and, as such, is their copyright.

There is a technical notebook, belonging to Mr Mulholland in the archive with  a range of photographs, notes and diagrams. The cable blueprint also comes from this. A sample of some of the more technical entries is shown here.

The "printer alphabet" in use at one time at CCC. I don't really know if this refers to a Teletype type of printer like those I remember from my early computing days in the 1960/70s but the punched tape shown is very reminiscent of the 8 hole tape we were using by that time.
It is clear from reading this that the technical staff had to be very familiar with the actual codes (and their pattern groupings) - something that was already becoming unnecessary by the 60s for most users like myself (we let the machines get on with it). Creed (grew up in Canso) was the inventor of the Teletype. The first five hole paper tape code was developed by Baudot (of baud fame) and improved by Murray to involve less movement in mechanisms. This appears to be a version of the Murray code[5].