chapter 1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
Chapter 1 PowerPoint Presentation
Download Presentation
Chapter 1

Loading in 2 Seconds...

  share
play fullscreen
1 / 18
Download Presentation

Chapter 1 - PowerPoint PPT Presentation

alexia
119 Views
Download Presentation

Chapter 1

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

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

  2. Outline and Objectives • Introduction to Computers • Using Windows • Files and Folders • An Introduction to Visual Basic Chapter 1- Visual Basic Schneider

  3. Parts of a Computer System: • Hardware: Electronic Devices • Software: Instructions and Computer Programs Chapter 1- Visual Basic Schneider

  4. Main components of Hardware: • Input : Keyboard, Mouse • System unit: • Random Access Memory (RAM) • Central Processing Unit (CPU) • Output: Monitor, Printer • Secondary Storage: Disk Drive Chapter 1- Visual Basic Schneider

  5. Random Access Memory (RAM) • Stores program instructions and data needed for processing. • Stores intermediate and final results of processing. • Contents are erased when computer is turned off or reset. Chapter 1- Visual Basic Schneider

  6. Programming Languages: • Machine Language • High level Language Chapter 1- Visual Basic Schneider

  7. Machine Language • The fundamental language of the computer’s processor, also called Low Level Language. • All programs are converted into machine language before they can be executed. Chapter 1- Visual Basic Schneider

  8. High Level Language • Computer (programming) languages that are easier to learn. • Uses English like statements. • Examples are C++, Visual Basic, and Java Chapter 1- Visual Basic Schneider

  9. Software: • Instructions for the hardware. • A collection of instructions is called a program. Chapter 1- Visual Basic Schneider

  10. Using Windows • Basic techniques to use the mouse: • Pointing • Clicking • Dragging • Double-Clicking • Hovering Chapter 1- Visual Basic Schneider

  11. Key Terms in using Windows • Title Bar • Active window • Dragging a window Chapter 1- Visual Basic Schneider

  12. Using Windows • Reviewing Notepad to learn more about Windows applications • Notepad is an item in the Accessories menu Chapter 1- Visual Basic Schneider

  13. Files & Folders: • A disk can store thousands of files. • To organize your files you have to store them in different folders (directories). Chapter 1- Visual Basic Schneider

  14. Key Terms in using Folders • Root folder • Path: A nested sequence of folders • Example: A:\Temp\MyProjects\ • File Specification: A drive letter, path, and filename • Example: A:\Temp\MyProjects\Example.vbp Chapter 1- Visual Basic Schneider

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

  16. Introduction to Visual Basic: • A language used to create windows applications. • Programs are developed with a Graphical User Interface or GUI. • The instructions executed in the program are controlled by events. Chapter 1- Visual Basic Schneider

  17. Terminology used in Visual Basic: • Form • Control • Object • Properties • Event Chapter 1- Visual Basic Schneider

  18. Steps to Design a Visual Basic Application • Design the appearance of the window that the user sees. • Determine the events that the controls on the window should recognize. • Write the event procedures for those events. Chapter 1- Visual Basic Schneider