Designed for beginners and candidates appearing in the DOEACC examinations, this book completely covers section B of module II of the O level scheme. It provides a systematic and step-by-step exposition of DOS 6.0, WordStar Professional 4.0, Desk Top Publishing, LOTUS 1-2-3 and DBASE III PLUS. The various commands and functions of these software packages have been explained in detail and their application is illustrated through practical examples.Several screen images are presented throughout the text clearly illustrating what happens on the computer screen when a command is executed.The book is ideally suited for self-study. Each chapter begins with an overview of the topics covered and ends with a summary of the discussion, review questions with answers and exercises for self-test.Other important features of the book: Provides useful tips for an efficient use of 1-2-3 and dBASE III PLUS;Explains 1-2-3 macros and dBASE programming; Illustrates the application of dBASE III PLUS through a practical case study;Includes a summary of WordStar, LOTUS 1-2-3 and dBASE III PLUS commands and functions.