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Input/Output

Input/Output. Chapter 13, Exploring the Digital Domain. Input and Output. the assortment of devices used for input and output some of the choices for connecting I/O devices to your computer system. In this chapter you will learn about. Input Devices. keyboard mouse

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Input/Output

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  1. Input/Output Chapter 13, Exploring the Digital Domain

  2. Input and Output • the assortment of devices used for input and output • some of the choices for connecting I/O devices to your computer system In this chapter you will learn about...

  3. Input Devices • keyboard • mouse • scanners (flatbed, slide, and drum) • digital cameras • sound card • MIDI (Musical Instrument Digital Interface) • video capture card

  4. Output Peripherals • video display monitors • monochrome and color • CRT • flat-panel displays

  5. CRT technology • cathode ray tube (CRT) • phosphors excited by electron gun beams • RGB composite color • horizontal scanning pattern to refresh phosphors

  6. Video Display Resolution • EGA (extended graphics adapter) • 640 X 350 • VGA (video graphics adapter) • 640 X 480 • SVGA (super VGA) • 800 X 600 • SXGA (super extended graphics array • 1024 X 768 • UXGA (ultra-extended graphics array • 1600 X 1200

  7. Flat-Panel Displays • LCD (liquid crystal displays) • active matrix (TFT) • passive matrix • other technologies • plasma, SED, etc.

  8. Output Peripherals • video display monitors • CRT and flat panel displays • printers • character, line, and page

  9. CHARACTER dot matrix low-cost, text and graphic printers slow-speed, low quality inkjet medium-priced general-purpose PAGE laser printers high-quality assortment of sizes, performance, and cost Printers

  10. Output Peripherals • video display monitors • monochrome and color • CRT and LCD • printers • character, line, and page • sound and voice output • MIDI synthesizers

  11. Connecting Peripheral • internal vs. external • serial vs. parallel

  12. Internal Bus Types • parallel communications • IDE (Integrated Drive Electronics) • Hard drives, CD-ROM • 16-bit parallel • PCI (Peripheral Component Interconnection) • network interface cards, video graphic adapters, etc. • 32 or 64 bit parallel

  13. Internal Bus Types, cont’d. • PCMCIA (Personal Computer Memory Card International Association) • laptop expansion cards • 16 bits parallel • newer CardBus supports 32 bits • SCSI (Small Computer System Interface) • several generations

  14. External Serial Bus Types • RS-232 • PS/2 mouse and keyboard • USB • Firewire

  15. Universal Serial Bus • up to 6 Mbps; 2.0 -- 480 Mbps! • two types of connectors • “A”-- upstream connections (to computer) • “B” -- downstream connections (to device) • hub • provides multiple connections • hot-swappable

  16. Firewire (IEEE 1394) • data rates at 100, 200, and 400 Mbps • self-configuring, hot-swappable • new standard -- 800 Mbps • common in consumer electronics

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