… summed up in one nice little piece from Kevin Naff at HuffPo:

One senior manager hired from print took a seat beside my desk and quietly typed a lengthy memo on his first day. When finished, he turned to me and whispered, “How do you type a capital letter?”
Mystified, I walked over and peered over his shoulder. Turns out he’d always had a secretary in print-land and had never typed his own memos. And so his first memo as a web staffer lacked any capital letters or punctuation.
“Shift,” I whispered back to him.