Great stuff Tony.
I'd totaly forgotten about Betamax.
How we take things for granted though. Who among us has ever given the bar-code a second thought and yet it's totally ubiquitous, the world would grind to a standstill without it.
The Bar Code is everywhere, and yet we never give it a moments thought. Because it is so efficient.
At its simplest, it is on every pack of every product in every supermarket in the world.
And every parcel delivered, and so much else.
Almost unheard of for a Bar Code to be wrong, too.