Remembering the main components of computers can be tricky, especially for younger children. These posters have been designed to characterise the parts to help children understand and remember their roles. RAM looks rather exhausted as CPU and GPU are constantly asking her to fetch files from hard disk. CPU appears to be busy shouting orders at all of the other parts.
This resource includes 12 posters in both colour and black and white (24 pages in total). It compliments my Parts of the Computer resource which you can preview by clicking here.