In this paper the role of personal computers (PC) in radiology was emphasised. PC have important role in medial image generation, in digital RTG, ultrasonography, endoscopy, tomography (CT, MR, PET). We emphasised the importance of PC in DICOM (Digital Imaging and Communications in Medicine) and image postprocessing, control and managing of radiology systems and PACS-a (Picture Archiving and Communication System) based on PC for transfer and archiving of medical images.