Chapter 1- Visual Basic Schneider1 Chapter 1 An Introduction to Computers and Visual Basic.

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Presentation transcript:

Chapter 1- Visual Basic Schneider1 Chapter 1 An Introduction to Computers and Visual Basic

Chapter 1- Visual Basic Schneider2 Parts of a Computer System: Hardware: Electronic Devices & Circuits Software: Instructions or Computer Programs

Chapter 1- Visual Basic Schneider3 Software: Instructions for the hardware. A collection of lines of instruction is called a Program.

Chapter 1- Visual Basic Schneider4 Types of Software: System Software Application Software

Chapter 1- Visual Basic Schneider5 System Software (Operating System): Is the interface between you and hardware. Is the interface between application software and hardware.

Chapter 1- Visual Basic Schneider6 Examples of System Software: UNIX MS-DOS Windows 98 / NT Windows 2000 Windows XP

Chapter 1- Visual Basic Schneider7 Examples of Application Software : Word Processing Spreadsheet Accounting Programming Languages: Visual Basic, C++, Pascal

Chapter 1- Visual Basic Schneider8 Using Windows Basic techniques to use the mouse: –Pointing –Clicking –Dragging –Double-Clicking

Chapter 1- Visual Basic Schneider9 Disks & Folders: Disk is a permanent storage. Disk management is handled by the Operating System. A disk can store thousands of files. To organize your files you have to store them in different folders (directories).

Chapter 1- Visual Basic Schneider10 History of Visual Basic: BASIC stands for Beginner’s All-purpose Symbolic Instruction Code. Developed by John Kemeny and Thomas Kurtz in mid-1960s. Visual Basic was developed in mid-1991 by the Microsoft Corporation.

Chapter 1- Visual Basic Schneider11 Introduction to Visual Basic: Language used to create windows application. Provides a Graphical User Interface or GUI. The sequence of instructions executed in the program is controlled by events.

Chapter 1- Visual Basic Schneider12 Terminology used in Visual Basic: Forms Controls Objects Properties Events We will use English terminology to keep them straight

Chapter 1- Visual Basic Schneider13 Steps to Design a Visual Basic Application Decide on the Interface for the user. (Forms & Controls) Determine which events the objects on the window should recognize. Write the events procedures for those events.