Up on the roof
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Next September, Block H, the home of Colossus, will celebrate its 70th anniversary -- but that means that the roof isn't what it used to be.
As a result, the First Generation Gallery (EDSAC, WITCH and HEC) and the Mainframes and Large Systems Room (Elliotts, ICL 2966 and more) will be closed for three months from 30 November 2018.
The rest of the museum will be open as usual.
We are of course very sorry for the inconvenience to visitors, but we have no other option because the roof is in such bad need of repair.
The precious machines under the roof in the two affected galleries will be protected during the process. The EDSAC team is of course particularly affected as they will have to temporarily stop work on the reconstruction which is in its final stages.