For most of the 20th century medical advances were related to the ability to diagnose and treat diseases. Biomedicine is strongly rooted in scientific discovery and therefore is profoundly influenced by the development of technology. Technologic development is constantly progressing and has transformed the way diseases are diagnosed and treated; however, medical advances often increase the costs of health care. Computerized technologies and microtechnology have allowed for more accurate monitoring and for management of intricate dynamic physiologic systems. For example, diagnostic tests and surgery can be performed on a fetus in utero to determine and limit future health problems. Complex physiologic systems can be managed and regulated by the use of pumps and other such means. As computers are developed further, more computerized technologies and microtechnology will be applied to health care.