1ab Input And Output
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Data can be input into a computer system using various input devices like keyboards, mice, touchscreens, microphones, and scanners. A monitor displays the computer's output using pixels, resolution, dot pitch, and refresh rate. There are different methods of computer output such as text, graphics, audio, and video. Printers are also an output device and come in various types like inkjet, laser, and thermal printers. When handling computer data, it is important to consider ethical issues around altering, erasing, or using others' data without permission.
1ab Input And Output
- 1. CIS 105 Input and Output: The User Connection
- 2. Describe the user relationship with computer input and output Explain how data is input into a computer system and differentiate among various input equipment Describe how a monitor works and the characteristics that determine quality List and describe the different methods of computer output Differentiate among different kinds of printers Explain the function of a computer terminal and describe the types of terminals Describe the ethical considerations involved in handling computer data Objectives
- 3. What is Input? Software (Programs) Data User Responses Commands
- 4. Input Devices Keyboard Mouse Trackball Touchpad Joystick Pens Pointing Stick Touch Screen Graphics Tablet Scanners Optical Readers OCR/OMR/Bar Code/ Magnetic Ink Character Reader Data Collection Devices Biological Feedback ADA: Keyguard Head mounted pointer Digital Cameras Microphone Voice/Speech Recognition Video Input Videoconferencing
- 5. Computer Keyboard Using a Computer Keyboard Cursor-Movement Keys Numeric Keypad Toggle Keys Function Keys Modifier Keys Windows Keys Alternative Keyboards Entering International Characters
- 6. Face Recognition Technology What Do You Think?
- 7. Trivia How do scanners “read”? Keyboard types? What are 4 types of Input? Light Sensors Data; program; commands; user responses QWERTY; Dvorak;Enhanced; Wireless
- 8. What is Output? Text Characters Graphics Digital representation of nontext drawings charts photos Image Editing Software Audio Music, speech, sound Video Images at speed provide appearance of full motion
- 9. Output Devices Monitors Flat Panel LCD Displays Gas Plasma HDTV (digital) Pixels Resolution Dot Pitch Refresh Rate Hertz Printers Portrait/Landscape Impact Inkjet Laser Thermal printer Portable printer Braille printer Plotters Label printer Fax machine Multifunction HDTV Speakers Headsets Tactile Displays Data Projectors LCD Digital Light (DLP)
- 11. Resolution
- 12. Choosing a Computer: Where Do You Start? Anticipate your software needs first Check the system requirements Hardware CPU Monitor (screen size, readability) Input Devices Secondary storage space Portability Surge Protectors
- 13. What is my budget? What are my needs? Can I expand the capabilities? Whom do I call if I have a problem putting the machine together? Does the store offer classes on hardware/software? What kind of warranty/ maintenance agreement comes with it? What’s available? Who does the maintenance? More Info? PC Purchase Worksheet
- 15. Trivia What is animation ? What are 4 types of Output? Text; Graphics; Audio; Video Series of still images displayed in rapid sequence
- 16. Ethics and Data Once data is in computer, there are many ways it can be used Ethical issues to ponder Is it ethical to use a computer to alter photographs? Is it ethical to erase e-mail messages that may be of interest to a party in a lawsuit? Is it ethical to use someone else’s data for your purposes?
- 17. Terms to Know: Input/Output Biological feedback devices CAD/CAM/CIM Cursor Data projector Dot pitch Input Input devices Keyboard shortcuts LCD MIDI Non-interlaced monitors OCR Output Output devices QWERTY Pixel POS Speech recognition Touchpad Trackball UPC Voice input Video Graphics Virtual reality
- 18. Questions? ? ? ? ? ?
- 19. If asked, can you explain… Explain how data is input into a computer system and differentiate among various input equipment Describe how a monitor works and the characteristics that determine quality List and describe the different methods of computer output Differentiate among different kinds of printers Explain the function of a computer terminal and describe the types of terminals Describe the ethical considerations involved in handling computer data
- 20. Sources Capron; Computers: Tools for An Information Age, 8 th Ed. 2003 Pfaffenberger; Computers in Your Future 2003 Microsoft Clipart