[Microbit-Python] I want to learn with micro:bit

[david finan]

But I am 54, can I still join in?

I don't have a card, can I learn on an Ubuntu / Win 7 dual boot very old PC?

I would love to learn to code, but most of the tutorials I have looked 
at so far seem to have been beyond me yet I can still program in HTML4.2 
(not got the hang of HTML5 yet)  Have been ill in bed for ages and 
struggled to learn anything for a while, but the clouds seem to be 
lifting so I thought I would try agian

Many Thanks

David