Computer Concepts Intro
- 2. Overview Explain Computer Literacy Define Hardware & Software Identify Computer Components Differentiate Various Software Types Differentiate Computer Platforms
- 3. A World of Computers Notable Technology Prognostications “ I think there is a world market for maybe five computers.” Thomas Watson, Chairman of IBM, 1943 “ Computers in the future may weigh no more than one and a half tons.” Popular Mechanics, 1949 “ There is no reason anyone would want a computer in their home.” Ken Olson, President of DEC, 1977
- 4. A World of Computers Computer Use Everywhere Impact Virtually Everyone Creation, Collection, Dissemination Price/Power Competition Computer Literacy Understanding of Computers and Their Uses Technical Knowledge Not Required
- 5. What Is A Computer? Computer Definition Electronic Machine Controlled by Instructions in its Own Memory Accepts Data Raw Facts, Figures, & Symbols Processes Data Into Information Data that is Organized, Meaningful, and Useful Produces & Stores Results
- 6. What Is A Computer? Information Processing Cycle Input — Accepts Data Processing — Manipulate Data Output — Produce Results Storage — Store Results Communication — Send Results to Others
- 7. What Is A Computer? Hardware & Software Hardware Electronic & Mechanical Equipment Software Instructions that Tell Hardware How to do Tasks
- 8. Hardware Common Hardware Components
- 9. Hardware System Unit Box-like Device Contains Electronic Components Connected to Motherboard
- 10. Hardware Input Devices Used to Enter Data & Instructions Keyboard Mouse Scanner Digital Camera Video Camera Microphone
- 11. Hardware Processing Memory Temporary Storage for Data & Instructions Central Processing Unit (CPU) Carries Out Instructions Tells Computer What to Do Attached to Motherboard
- 12. Hardware Output Devices Conveys Information to User Monitor Printer Speakers
- 13. Hardware Storage Holds Data & Instructions for Future Use Media Physical Material Device Reads / Writes Data
- 14. Hardware Communications Devices Establishes Connection Between Computers Use Telephone Lines, Cables, & Satellites Modem Converts Digital Signals to Analog & Vice Versa
- 15. Hardware Networks Collection of Connected Computers / Devices Share Resources Hardware Software Data & Information Save Time & Money Internet Worldwide Network Linking Millions of Computers
- 16. Software Systems Software Controls Computer Operations & Hardware Operating System Set of Programs Coordinates Activities Among Hardware Devices Allows Users to Run Application Software Utility Programs Allow Users to Perform Maintenance-type Tasks
- 17. Software Application Software Performs Specific Tasks for Users Word Processing Spreadsheet Database Presentation Personal Information Management (PIM)
- 19. Software Programs Series of Instructions Tells Computer What to Do
- 20. Advantages & Disadvantages Computer Advantages Speed Reliability Consistency Storage Communications
- 21. Advantages & Disadvantages Computer Disadvantages Violation of Privacy Crime Impact on Labor Force Health Risks Impact on Environment
- 22. Platforms Personal Computers Desktops PCs & Compatibles Windows OS Apple Macintosh OS
- 23. Platforms Personal Computers Notebook AKA Laptop Tablet
- 24. Platforms Mobile Computers PDA Smart Phone Handheld
- 26. Industry Applications Education Distance Learning Finance Online Banking & Investing, Tax Prep Government 911 Dispatching, Squad Notebooks Healthcare Electronic Patient Records, PPID
- 27. Industry Applications Science Collect, Analyze, & Model Data Publishing E-books, PDF Manuals, MP3s Travel Navigation Systems, Reservations, E-tickets Manufacturing Production, Inventory, Quality Control
Editor's Notes
- #26: 200 Million Moves/s; 64 CPUs