Quote from jamesh on November 4, 2011, 11:31
Ref conduit prices.
£30 for 90m of 20mm (yes, Ninety metres). subminiatures quote seems excessive. I used with standard 2.5mm T&E, although you can get two cables down the conduit without problem.
as the nearest I could find a picture off. The idea is that the trunking has the sockets included and if you want to add more or move them you can. As I said not the cheap 25mm stuff from B&Q. It is type of trunking that the physic lab (along benches) and computer suite (around the wall) are kitted out with.
ref: This projects. This project is new and unique because its the first time that the cost of the computer is so low that it can provided in lieu of, for example, a textbook, or so low that every child in the classroom can have one to take home. It now lower than the monitor for the first time.
But there have been projects of a laptop/netbook per pupil that are on par with Raspi + new monitor and there are schools already with every pupil being given a computer to take home. As to lower cost of CPU than monitors - no I think Tradcom might have achieved that in 83.
ref: BT example. Second hand equipment is a different kettle of fish which does need safety checking, so not relevant here as the Raspi is new equipment so does not need the individual checks.
ref: cables all over the place. It's not necessary to trunk everything to make it safe. There are much cheaper alternatives, which are already used all over the place.
I am not familiar with all over the place only a few schools in England.
ref: Planning. If you want to plan to the nth degree, work for NASA. If you actually want to fly rockets, join SpaceX. You can spend so much time planning you never get anything done.
Alas NASA didn't do enough thinking either. Those who do no planning at all mostly end up doing more work than they need to. Work smarter not harder.
It will be very interesting to see how it is "sold" to the schools, the configuration and how it fits in.
Individually and a 101 other uses including giving one to the child who is interested in getting behind the computer screen great - no problem I'd give them away as Christmas presents (when finally released boxed packaged etc and a suitable case with appropriate inputs and outputs) by the dozen.