Their data would all be stored centrally, accessible to all workstations. An Amiga computer could easily be attached to this network, displaying images from all the different modalities. The reality is quite different. Different manufacturers use different, proprietary image formats which are unreadable on their competitors machines. Machines from different manufacturers are often difficult to network.
Different manufacturers have different, proprietary formats for their storage media.
One manufacturers's hard drive cannot, for example be read by a competitor. All of this is changing. Patient demographics, images, voice files, and reports are being integrated. The future is not yet here.