In a nutshell, what is the big difference between ‘quantum’ computing and what we have now?.........................
I could give you the answer but I’ll have no idea what it was that I just said.
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so here is a google search for “what is the difference between quantum computing and conventional computing”
http://bit.ly/2nxxrKr
here is a google search for “classical computer vs quantum computer
http://bit.ly/2n2vlpw
All you really need to know is that quantum computers are millions of times faster than laptops.
and at least 1000’s of times faster than current super computers.
http://www.telegraph.co.uk/technology/news/12042781/Google-D-Wave-quantum-computer-is-100-million-times-faster-than-your-PC.html