• A Essentials Objectives
  • Video/Demo Time
  • Total Time About 15 minutes Section 4.5: Display Devices Summary
  • Lab/Activity
  • Lesson Plans

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    Section 4.4: Input Devices


    This section discusses selecting and connecting input devices. Concepts covered include:

    • Common interfaces used for connecting input devices.

    • Considerations for selecting the following input devices:

      • Keyboard

      • Mouse

      • Touchscreen

      • Barcode reader

      • KVM switch

    Students will learn how to:

    • Select input devices based on customer requirements.

    • Connect input devices using the appropriate port.
    A Essentials Objectives:

    • 1.8 Install and configure peripherals and input devices

    Lecture Focus Questions:

    • What interfaces are commonly used to connect input devices on a system?

    • What are the advantages of using a laser mouse over one with a roller ball?

    • What are the types of touch screens? How are they different?

    • For what other purposes are barcodes used other than checkout stands in retail stores?

    • How does a KVM switch allow multiple computers to connect to a single set of input/output devices?

    Video/Demo Time

    video4.4.1 Input Devices 3:32


    • Connect a KVM Switch

    Number of Exam Questions

    3 questions

    Total Time

    About 15 minutes

    Section 4.5: Display Devices


    This section discusses details about monitors and video interfaces. Concepts covered include:

    • Considerations when choosing a CRT monitor:

      • Screen size

      • Resolution

      • Display type

      • Dot pitch

      • Refresh rate

      • Interlacing

      • Additional features

    • Characteristics of LCD monitors:

      • Display characteristics

      • Display types

      • Backlight method

      • Aspect ratio

      • Resolution

      • HDTV support

      • Screen size

      • Dead pixels

    • Types of video interfaces:

      • D-sub

      • DVI-A

      • DVI-D

      • DVI-I

      • DMS-59

      • Composite video

      • S-video

      • HDTV (component)

      • HDMI

      • DisplayPort

      • Cable TV (F-type)

    Students will learn how to:

    • Identify digital and analog connectors by sight.

    • Select the appropriate monitor based on customer requirements and system support.

    • Configure display properties in Windows including dual monitor support.
    A Essentials Objectives:

    • 1.7 Distinguish between the different display devices and their characteristics

      • Projectors, CRT and LCD

      • LCD technologies

        • Resolution (e.g. XGA, SXGA , UXGA, WUXGA)

        • Contrast ratio

        • Native resolution

      • Connector types

      • Settings

        • Refresh rate

        • Resolution

        • Multi-monitor

        • Degauss

    Lecture Focus Questions:

    • What feature of a non-interlaced monitor makes it a better quality than an interlaced monitor?

    • Which LCD display type typically has the fastest response time? What uses make a monitor with a slow response time a poor choice?

    • Which LCD display type has the best color representation and viewing angle?

    • What are two methods used for the backlight in LCD monitors?

    • Which aspect ratio is used by high definition movies and television?

    • What is the difference between 720p, 1080p, and 1080i? Which would you choose for full HDTV support?

    • How can you tell the difference between a DVI-A and a DVI-D cable?

    • Which connectors are used for an analog video signal? Which connectors provide only a digital signal?

    • What are the advantages of dual link cables over single link cables?

    • What is the difference between composite and component video?

    • When might you see an F-type connector on a video card?

    Video/Demo Time

    video4.5.1 CRT Monitors 15:04
    video4.5.3 LCD Monitors 6:28
    demo4.5.5 Video Interfaces 7:24
    demo4.5.8 Configuring Display Settings 8:46
    Total 37:42


    Number of Exam Questions

    13 questions

    Total Time

    About 60 minutes
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