Wednesday, January 28, 2009

A+ Hardware configure display devices

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In this session, you will learn to:
Objectives
Install and configure display devices.
Install and configure input devices.
Install and configure adapter cards.
Install multimedia devices.
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Install and Configure Display Devices
In order to install and configure display devices, you would
need to:
Identify various types of display devices
Identify various display settings
Identify LCD characteristics
Identify different types of connectors
Configure the device driver
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Display Devices The following are some common display devices:
Types
CRT monitor
LCD monitor
Projection system
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The following are some display characteristics for each
Display Settings
video output device, which you can configure either through
a dialog box in Windows, or through controls on the physical
monitor.
Resolution
Refresh rate
Color depth/color quality
Brightness
Contrast
Image position
V-hold
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The following are some unique characteristics of LCD
LCD Characteristics
devices:
Screen type
Resolution
Contrast ratio
Backlighting
Pixelation
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The following are some of the connector types used by
Connector Types
display devices:
VGA
DVI
HDMi
Component/RGB S-Video Composite video
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A device driver is a type of software that enables the
Device Drivers
operating system and a peripheral device to communicate
with each other.
Generalized commands from the
system software or an application
Unique programming commands
that the device can understand
Personal computer Printer
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Display Selection Tips
CRT monitors offer more features and potentially better
Device resolution.
CRT monitors are also less expensive than flat-panel
monitors.
Many users simply prefer flat-panel monitors because they
take up less space.
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Considerations
When you’re ready to install a display device, keep the
Display Device Installation following considerations in mind:
Drivers
Digital Video Interfaces
Video Adapters
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Activity 4-1
Activity on Installing
Display Devices
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Activity 4-2
Activity on Configuring
Display Devices
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Standard Input The following are some common input devices which fall
Device Types
under mice and keyboards:
Ergonomic keyboard Standard keyboard Dvorak keyboard
Mouse Trackball Touch pad
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Biometrics is an automated method of recognizing a
Biometric Input Devices
person based on a physiological or behavioral
characteristic.
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The following are some specialized input devices that you
Specialized Input Devices
might encounter in your workplace:
Bar code readers
Touch screens
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For keyboards, consider ergonomics and additional
Input Device Selection Tips
features such as wireless connectivity.
For pointing devices, consider optical mice, wireless mice,
and user preference.
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Considerations
You should consider following factors before attempting to
Input Device Installation install input devices:
Drivers
Ports
Manufacturer’s instructions
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Activity 4-3
Activity on Installing Input
Devices
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Activity 4-4
Activity on Configuring
Input Devices
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System boards include several buses, or data paths, to
Internal Bus Architectures
transfer data to and from different computer components,
including all adapter cards. The various internal bus
architectures are:
8-bit (legacy)
ISA
EISA
MCA
VL-bus
PCI
AGP
PCI-E
AMR
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CNR
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Card The following figure lists the various adapter card types:
Adapter Types
Adapter Card Type Description
A adapter Video adapters
video provides the interface necessary to connect a
monitor for visual output. Generally, these adapters connect to
the system board through PCI, AGP, or PCI-E slots.
adapters
Multimedia adapters provide the interfaces necessary to connect
Multimedia microphones, speakers, electronic musical devices, and some
gaming devices for audio input and output.
Input/output adapters Input/output adapters provide the interfaces necessary to connect
SCSI, serial, USB, and parallel devices for data input and output.
Network adapters Network adapters provide the interface necessary for network
communications.
Modem adapters Modem adapters provide the interface necessary for remote
communications over phone or data lines.
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Card Verify that its bus type is compatible with the computer.
Adapter Selection Tips
Make sure that the adapter card’s drivers are compatible
with the computer’s operating system.
Use PnP to automatically configure the card’s hardware
resources, but make sure that the computer’s BIOS and
operating system supports PnP.
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Considerations
You should consider the following before installing adapter
Adapter Card Installation cards.
Available slot
Latest drivers
Unplug the computer and discharge electricity
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and Requirements
Some of the requirements while configuring adapter card
Adapter Card Configuration Optimization are:
Plug and Play support in the system should automatically
detect the adapter card
If, not get the driver for the adapter card from the manufacturer
Use Add Hardware Wizard to manually select the adapter card
from the device list
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Hardware The following are the various categories of hardware
Resources
resources:
Interrupt Request (IRQ) lines
I/O address
Direct Memory Access (DMA)
Base memory address
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Activity 4-5
Activity on Identifying
System Parameters
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Activity 4-6
Activity on Installing
Adapter Cards
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Multimedia A multimedia device is a computer peripheral or internal
Devices
component that transfers sound or images to or from a
personal computer.
MIDI instruments can be
connected to each other
with MIDI connectors
Speakers and
headphones
connect to the
MIDI cables or to the
computer through a device
that connects to a
computer port
line out port
Joystick
port
connections
MIDI
connections
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A microphone
connects to the MIC
port
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Multimedia Devices (Contd.)
Game controller connects to
the game port 1/8” jack connects to the
line in port
Cable with 1/8” jacks
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Multimedia Devices
Some of the common multimedia devices are:
Common Digital cameras
Webcams
Video-conferencing systems
MIDI devices
Microphones
Speakers
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Multimedia Digital Camera: What type of output does the user need
Device Selection Tips
from the camera?
Sound Cards: Responsible for translating digital music into
analog signals.
Microphones: Use microphones to complete tasks such as
making phone calls via the internet and to dictate to the
computer using voice recognition software.
Speakers: If users plan to listen to music or play games on a
computer, it's important to help them select higher-quality
speakers.
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Considerations
Some of the considerations that need to be taken while
Multimedia Device Installation installing multimedia devices are:
Is there a slot available on the motherboard for installing a
sound card?
Are the appropriate device drivers available for the
computers operating system?
Are the necessary cables to connect multimedia devices
available?
Do you have a memory card reader available?
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The following can be configured using the Device Manager
Multimedia Device Configuration and Optimization Requirements
for multimedia devices:
Enabling and disabling audio features
Updating drivers
Specifying hardware
resources
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Activity 4-7
Activity on Installing
Multimedia Devices
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Summary
In this session, you learned that:
The prerequisites for installing and configuring the display
devices are:
Identification of various types of display devices
Identification of various display settings
Identification of LCD characteristics
Identification of different types of connectors
Configuring the device driver
The prerequisites for installing different input devices are:
Drivers
Ports
Manufacturer’s instructions
The adapter cards are used to extend the capabilities of a
computer.
adapter adapter adapter
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Video adapter, multimedia adapter, Input/output adapter,
network adapter and modem adapter as some of the types of
adapter cards.
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Summary (Contd.)
A multimedia device is a computer peripheral or internal
component that transfers sound or images to or from a
personal computer.
Some of the common multimedia devices are:
Digital cameras
Webcams
Video-conferencing systems
MIDI devices
Microphones
Speakers
Ver. 1.0 Session 4 Slide 35 of 35

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Linux, CCNA and MCSE Questions: User Managment

Linux, CCNA and MCSE Questions: User Managment