Whilst the National Museum of Computing staff were entertaining the museum visitors, over in the Mansion, the speakers were also busy, this time with assistance from more modern equipment such as projectors and PowerPoint slides.
Talks were popular, and as such, ticket-only events. Some sold out well in advance, others led to long queues of disappointed would-be attendees on the day. What follows is an account of just three of those talks, to give a flavour of what was on offer that weekend.
The photo was uploaded to Flickr on 20 March 2009 by Steve Parker.