In this book, we will explain how to create a database using system file technology by object-oriented programming We will discuss in detail from the beginning the use of system files and their types within the Windows operating system environment Up to object-oriented programming and classes and restoring what works and what doesn't fit in system files with classes using system files Also, files will be dealt with by searches, modifications, additions, deletions, which are the basic operations in databases, and this is what we are exposed to in this section. We will explain the rest of the transactions in other sections of this book, and this section of the book will include fourteen An important point to reach the goal in this section.