Contents --Unit1. The Amazing Computers --Unit2. Interacting With Your Computer --Unit3. Output Devices --Unit4. Processing Data --Unit5. Storing Information In a Computer --Unit6. The Operating System And User Interface --Unit7. Networks Data Communications --unit8. The Internet Online Resources --Unit9. Application Software: Word Processors And Spreadsheet --Unit10 Application Software: Presentation Programs And Databases --Unit11. Graphics And Multimedia --Unit12. Developing of Information Systems.