Technological advances happen rapidly in the computer field. Thus computer professionals must keep their skills up to date. They either read magazines or take classes. Hardware and software vendors, universities, and private training institutions offer courses. Additional training may come from professional development seminars.
Many employers pay for their employees to attend classes.
It is rarely required for employment or advancement. However, certification may give job seekers a competitive edge. Certification is available from the Institute for Certification of Computer Professionals.