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Computing Fundamentals

Computing Fundamentals. Unit 2, Part 2- Input, Output, & Peripherals. Objectives. Identify & describe input devices Identify & describe output devices Connect input & output devices to a computer Identify common peripherals. Allow data IN the computer. Input Devices. Keyboard- Input.

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Computing Fundamentals

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  1. Computing Fundamentals Unit 2, Part 2- Input, Output, & Peripherals

  2. Objectives • Identify & describe input devices • Identify & describe output devices • Connect input & output devices to a computer • Identify common peripherals

  3. Allow data IN the computer Input Devices

  4. Keyboard- Input • Regular • Ergonomic • Wireless • Flexible • Virtual

  5. Input Device- Mouse • Mechanical Mouse (OLD) • Has a rubber ball under • Sensor detect movement • Must use mouse pad

  6. Input Device- Mouse • Optical • LED on bottom • No mouse pad needed • Not good on glass • Laser • Laser light on bottom • No mouse pad needed • 20x better sensitivity • Wireless • USB Receiver • Optical or Laser

  7. Voice Recognition- Input • Speak commands into PC & enter text • Software must be installed • Disabled people use

  8. Are these input devices?

  9. Digital Camera- Special Input • Capture still pics & videos • Point & shoot • DSLR • Pictures stored to media card • SD is most common • Transfer to computer

  10. Digital Camera Features • Lens/Zoom • Digital Zoom • Optical Zoom • Rechargeable Battery • NO ALKALINES! • Megapixels • Pixel= single dot • Mega= million • More= better prints • Touch screen • Wireless Transfer

  11. Project • Bring in your digital camera • Make a feature chart • Brand, Megapixels, Optical zoom, digital zoom, screen size, type of memory card, special features, type of battery

  12. Printers- Output Device • DPI • Dots per inch • More dots= better quality • 4800 x 1200 (H x V) • PPM • Pages per minute • Black & Color speeds • Color is slower

  13. Dot Matrix Printer- OLD • Dot Matrix • Pins hammer into ink ribbon • Connected paper with guide holes • Not good quality • Slow & noisy

  14. Inkjet Printers • Nozzles spray liquid ink • Very good quality • Quiet • Fast • Inexpensive

  15. Laser Printer • Laser inside • Toner is a powder • Thousands of pages from toner • Very fast printing • B&W or color • 4 color toners (CMYK)

  16. Other Printers • All-In-One • Print, copy, scan • Some have fax too • Inkjet & laser • Photo Printer • Small • 4 x 6 glossy • Plotter • Large paper • Drafting, posters

  17. More About Printers • How they connect • Wired- USB or network • Wireless • Print from any PC, phone, tablet • Make money from ink & toner • Printer: $50 • Ink Cost: $6 • Price You Pay: $20-$30

  18. Your Printer • Get your printer brand & model # • Look up: • Inkjet or Laser • All-in-one or not • dpi • ppm (black & color) • Connections • Ink or toner cost • Cost of printer • Cost of a ream of paper • Cost of a 3’ USB cable • Cost of 8 x 10 photo paper

  19. Output Devices • Data comes OUT of the computer • Name some

  20. Monitors • Video card in case sends images to monitor • CRT • Big & bulky • LCD & LED • Thin, flat-panel • Less energy • Connect w/ video cable & power

  21. Front of Case

  22. PC Connections

  23. PS/2 Ports • Purple • Keyboard • Green • Mouse • Both 6 pin female

  24. Video Display Ports • VGA • Blue • 15 pin female • Video only, analog • HDMI • Digital HD video & audio through one cable

  25. USB Ports • Transfer data & electricity • Plug and play (PnP) • “Hot swappable” • High speed • 2.0- fast; 10 songs/sec. • 3.0- faster; 100 songs/sec.

  26. Network Port • NIC or Ethernet • Connect to network • Use an Ethernet Cable or Network Cable

  27. Serial 9 port male RS-232 Old modems & mice Parallel & Serial • Parallel • 25 port female • IEEE 1284 • Old Printers

  28. Serial Parallel & Serial Devices • Parallel

  29. Modem • Modem • RJ11 • Phone/Line Jacks • 56kbps

  30. Audio Ports • Line In • Audio into PC • Record Player to PC • Line Out • Headphone • Speakers • Microphone

  31. Ports on Your Computer • Bring in Laptop or Take picture of laptop/desktop ports • Laptop- all sides • Print in class & label • View & connect wires to class PC’s • Practice connecting wires

  32. Review • Which video port sends HD audio & video through one cable? • HDMI • What common port transfers data and can charge your cell phone? • USB • How many pins is the old keyboard & mouse ports? • 6 pin female • The VGA port is what color and how many pins? • Blue, 15 pin female

  33. Review • Which port would you connect to get access to a network? • Ethernet • Joe wants to convert his old records to CD’s. Which port can you plug his record player into? • Line In • Which port is a common plug and play one? • USB

  34. PC Connections

  35. Review 1 • Practice Connecting Cables • Handout • What port would you connect the device to?

  36. Other Ports • S-video • HDMI • DVI • Firewire

  37. Review • Which part of the computer performs calculations and controls processes? • CPU • What is it called when people can speak into a PC and have it perform those commands? • Voice recognition • Which type of memory is volatile? • RAM

  38. Review • Which software translates speech into text? • Voice recognition • What is the name of the path that data travels on a motherboard? • Bus • Which type of storage device has no moving parts? • Flash/USB drive

  39. Computing Fundamentals Unit 2, Part 2- Input, Output, & Peripherals

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