Yes computers have replaced allot of the original purpose of hand drawings especially working drawings that aren't representational and needs to be precise, its also made it easy to change and correct things on designs, but when it comes to representational drawings a computer drawing will never be able to recreate the feel, emotion, and atmosphere of a hand drawing. Its like the difference between listening to music on your computer or seeing the live performance, the cd will never replace the live performance. All computer drawings start with hand drawings.
Our architectural engineering team can understand the clients projects needs and convert hand sketches, complex paper drawings, hand scribbles and survey notes into a set of complete architectural plans.