An optical pattern that encodes a URL for recognition by mobile phone cameras, enabling the user to access a web page by scanning the code with the telephone.
- ‘There are two steps used to retrieve the URL from the semacode: image recognition and decoding.’
- ‘You create your order on your iPhone and when you're done, the app produces a semacode. You then bypass the queue at the counter and swipe the semacode over a sensor.’
- ‘Someone slipped me an email on semacode, so I decided to look into it.’
We take a look at several popular, though confusing, punctuation marks.