That's not how it works in Europe; just saying "done on a computer" is explicitly not enough. There's a concept called "technical effect" that's been worked over in the courts and well developed in the last decade (I'll leave you to look it up, eg https://en.m.wikipedia.org/wiki/Software_patents_under_the_E...).
I'm a bit out of the loop but whilst USA started letting pretty much anything in there seem to have tightened up over the years.
There's a parallel with business methods too. In both cases there been a move towards a middleground - harmonisation. Personally I feel the USA position is far worse and this harmonisation is not good; liberalisation of soft-pat and business method patents on Europe would be a big loss IMO.
I'm a bit out of the loop but whilst USA started letting pretty much anything in there seem to have tightened up over the years.
There's a parallel with business methods too. In both cases there been a move towards a middleground - harmonisation. Personally I feel the USA position is far worse and this harmonisation is not good; liberalisation of soft-pat and business method patents on Europe would be a big loss IMO.