This document discusses the uses of computers in economics. It begins by defining computer and its components. It then defines economics as the study of production, distribution, and consumption of goods and services. It provides examples of how computers are used in businesses, banking, finance, and trading. Specifically, it explains how computers allow for large data management, communication, documentation, inventory management, and customer relationship management in large companies. It also discusses the rise of dot-com companies, algorithmic electronic trading, and how computers are used for tasks like data storage, spreadsheet analysis, and programmed transactions in finance and banking.