2.1. Introduction

Visual Basic is a very popular high-level language implemented in all application fields, including commerce, industry, and manufacturing. From the point of view of the Graphic User Interface (GUI), Visual Basic is a good choice. It's a convenient, user-friendly interface and supplies plenty of flexible graphic components as well as provides an easy-to-use programming environment. But we cannot ignore some shortcomings of Visual Basic though we enjoy the benefits. One of the most important issues for Visual Basic applications is running speed. We always talk about real-time programming and real-time applications in the real world. But what is the exact meaning of the real-time environment and real-time programming? You cannot ...

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