Researchers tried to discover if taking notes on a keyboard was as effective in committing the information to memory as writing (and doodling) on paper:
While the research is not conclusive, several researchers contend that writing by hand stimulates special neural circuits, leading to stronger reading ability, new idea generation and retention of information.
I do wonder what they would’ve found if someone was taking notes on an iPad (without a keyboard). I found some pretty dramatic differences in my writing when I slowed down and typed on my iPad.
—Linked by Jason Snell