Input/Output Chapter 13, Exploring the Digital Domain.

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Presentation transcript:

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...

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

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

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

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

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

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

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

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

Connecting Peripheral internal vs. external serial vs. parallel

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

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

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

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

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