On 24/04/15 09:54, Alan Gauld wrote:
numbers or other symbols so there were two sets of meanings to each pattern and a shift pattern to switch between them (which is why we have SHIFT keys on modern keyboards).
Sorry, I'm conflating two sets of issues here. The SHIFT key pre-dated teleprinters from the typewriter. The reason was the same: the physical carriage had to mechanically shift up so that the second set of characters would be printed. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
