This is quite an old video but it does show very nicely how things have changed and, indeed, still are changing.

When Tim Rawe and I first put this together no-one had heard of twitter or facebook. Google was just one of many search engines people used and only geeky people had web sites.

Teachers would do huge piles of photocopying before class and some would even use cases on wheels or those granny shopping basket affairs to carry stuff around.

E-mail only arrived on your computer in Outlook and lots of people printed messages out to read or even file away. Word attachments were everywhere and only the very brave tried to put a video in a presentation. Even then they just got a black rectangle.

Ah, those were the days ...