The research emphasizes importance of preliminary drawings in design of any product. Therefore. using of simulation as tools for visual thinking in developing drawing and design skills. So that practice of drawing by hand. https://www.roneverhart.com/HGST-Ultrastar-7K6000-HUS726040ALS214-4TB-7-2K-RPM-SAS-12Gb-s-512n-128MB-3-5-SE-Hard-Drive/