What does hospital informatization mean? Who can elaborate? Just have a general framework.

Hospital informatization construction covers a wide range, mainly referring to the informatization construction based on intranet and LAN, including hospital information system (HIS) involving electronic medical records, doctor's advice, laboratory information system (LIS), picture transmission and storage system (PACS), outpatient management system, price list system, drug management system and other related supporting subsystems. Supporting computer rooms, servers, wiring, routers and terminals are naturally necessary. In addition, the paperless office and information publishing system based on LAN is also an important part.