The term refers the persons who use computer System
Administrator: It is a person who has central control over the computer systems.
System Managers: He is responsible for all business transactions with all vendors and contractors.
System Analysts: He is responsible to improve the productivity and efficiency.
Database Administrator – It is a person who has a central control over the DBMS.
Computer Engineer: The person design either h/w or s/w of a computer system.
Application Programmer- These are computer professionals who interact with the DBMS through programs.
Computer operators : He is an end user and does not know computer in detail.