The document discusses the use of computers and information technology (IT) in management control. It describes how IT systems like Management Information Systems (MIS) are used to provide information for strategic planning, tactical planning, and operational planning. MIS helps management with decision making in key areas like marketing, manufacturing, logistics, finance, and top management functions. The document outlines the objectives, prerequisites, need for, and functions of MIS. It also gives examples of tools and applications of MIS.