219 reputation
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age 57
visits member for 2 years, 4 months
seen Jan 28 at 9:13

Grey-haired geek, perennial polymath.

I used to develop in Java but I got tired of all the brackets and static typing, so I now play with Python.

In case people wonder about why I am also registered for the English and Chinese Stack Exchange forums, I recently spent a couple of years in China teaching English.

revised what do we call the machine used in shops through which we swipe our ATM card to pay for something?
Add some further information about differences between types of payment card.