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Chapter 10 Installing End-user Computer Systems


Chapter 10 Installing End-user Computer Systems Site preparation steps for computer installations Tasks to prepare an installation site Purpose and contents of a site ... – PowerPoint PPT presentation

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Title: Chapter 10 Installing End-user Computer Systems

Chapter 10Installing End-user Computer Systems
Learning Objectives
  • Site preparation steps for computer installations
  • Tasks to prepare an installation site
  • Purpose and contents of a site management
  • Tools needed to install hardware
  • Steps to install and configure hardware
  • Steps to install and configure an operating
  • Steps to install and configure software software
  • Wrap-up tasks that installers often perform

System Installation Overview
Site Preparation
  • Pre-installation inspection
  • Checklist of issues
  • Space requirements
  • Space constraints
  • Storage requirements
  • Ergonomic issues
  • ADA or OSHA accommodations or issues
  • Adequate power supply accessible
  • Power conditioning required
  • Telephone and/or network access
  • Air conditioning required
  • Lighting problems
  • Fire suppression

Locating System Components
  • Locate computer system and devise strategies to
    conserve space
  • System Components
  • System unit
  • The footprint of a desktop case is its length
    times its width (measured in square inches)
  • Keyboard and Mouse
  • Optimal desk height is 26-28 inches from the
  • Monitor
  • Optimal user view is straight ahead or slightly
  • Printer
  • Optimal access for loading paper, retrieving
    print-outs, and clearing jams

Locating System Components (continued)
  • Supplies (manuals, ink/toner cartridges, media,
    printer paper)
  • Convenient access
  • Tip avoid storing paper in damp area
  • Tip avoid storing magnetic media near
    generators, motors, electric and phone equipment
  • Furniture considerations
  • Importance of adjustable chair
  • Adjustable seat height, seat swivel, tilt,
    backrest, arm rest
  • Waterfall seat edge
  • 5-leg base

Space Constraint Solutions
  • Separate computer worktable
  • Flat panel display screen
  • Monitor arm for CRT display
  • Keyboard shelf
  • Locate system unit and peripherals under or close
    to, but not on, users desk

Ergonomic Concerns
  • Ergonomics is the study of how to design computer
    systems and workspaces to
  • Minimize health problems
  • Maximize worker
  • Safety
  • Productivity
  • Comfort
  • Job satisfaction

Health Concerns Related to Ergonomic Problems
  • Back or Neck Muscle Pain
  • Leg Pain
  • Eyestrain and Headaches
  • Wrist and Finger Pain
  • Repetitive strain injuries (RSI) result from
    continuous use of joints in a limited range of
  • Carpal tunnel syndrome is a common form of
    repetitive strain injuries that affects wrists
    and fingers

Back or Neck Muscle Pain or Numbness
Leg Pain or Numbness
Eyestrain and Headaches
Wrist and Finger Pain
Workstation Ergonomics
Devices to Address Ergonomic Problems
  • Adjustable tables and work surfaces
  • Adjustable chairs
  • Footrests
  • Keyboard shelves
  • Alternative (natural/ergonomic) keyboards
  • Alternative pointing devices (trackballs and
  • Wrist rests
  • Mouse support rests
  • Document holders
  • Monitor arms
  • Task lighting
  • Antiglare screens
  • Assistive devices

Impacts of Ergonomic Problems
  • Ergonomics are important concerns
  • Injuries
  • Permanent disabilities
  • Legal rules and regulations
  • Occupational Safety and Health Administration
  • Americans with Disabilities Act (ADA)
  • Tip Ergonomics is an area where a user support
    specialist can develop special expertise to add
    value to their employment or résumé

Power Requirements Overview
  • Many small computer systems do not require
    special electrical power
  • Special situations
  • Outlets
  • Outlet wiring
  • Circuit amperage
  • Shared circuits
  • Power stability
  • Multiple computers

Special Power Requirements
  • 1. Outlets
  • Old buildings may have two-pronged outlets
  • Avoid cheater plug adapters
  • 2. Outlet wiring
  • Use LED tester
  • Test three-prong outlets to make sure the hot,
    neutral, and ground prongs are wired correctly

Special Power Requirements (continued)
  • 3. Circuit amperage
  • Determine total amperage to see whether circuit
    can handle the load of devices
  • 4. Shared circuits
  • Do not install computer system on a circuit that
    services devices with heavy motors or generators
  • A dedicated circuit is preferable

Special Power Requirements (continued)
  • 5. Power stability
  • Get advice from local electric company
  • Use metering device to measure quality of power
  • Power conditioner is a device placed between
    computer and power source that regulates
    electrical power to keep it within acceptable
  • 6. Multiple computers
  • Consult electrical contractor to verify that
    power is adequate and well-conditioned

Tips on Power
  • Use an electrical power strip for convenience,
    but not as an extension cord
  • Best power strips include surge suppression
  • Certification UL 1449 (second edition)
  • Peak protection at least 40,000 amps
  • Clamping voltage 330 volts or less
  • Clamping response time 1 nanosecond or less
  • Energy rating (dissipation) 750 joules or more
  • Status indicator LED lamps
  • Warranty against damage to protected equipment

More power tips
  • Avoid
  • Stressed cables
  • too tight
  • hard bends
  • Cables on floor or under carpet
  • Use
  • Wall-mounted cable conduits (runways)
  • Protective rubber conduits
  • Plastic ties to bundle cables

Telephone and Network Access
  • Determine location of access points before
    installation in case extension lines are
    necessary to reach installation site
  • Identify type of network access
  • Dial-up modem
  • DSL
  • Cable modem
  • ISDN
  • Satellite
  • T1 or T3
  • Wireless

Air Conditioning
  • May be required in locations where a large number
    of computer systems will be installed close
  • Small office
  • Training room
  • Computer lab facility
  • Mainframe and minicomputer facilities
  • Consult an HVAC specialist
  • Determine BTUs of air conditioning capacity

Lighting Problems
  • Light intensity
  • Reduce lighting in over-lit areas
  • Light source
  • Position display screen to avoid glare on screen
  • Light type
  • Florescent bulbs may flicker at same rate as
    CRT-type monitor

Fire Suppression
  • Electromechanical equipment can cause fires,
    primarily due to power supply problems
  • If no fire extinguisher system exists
  • Use portable fire extinguishers rated for
    electrical fires (Class C)
  • Use Halon-substitute in gas extinguisher

Site Management Notebook
  • A site management notebook consolidates important
    information about a computer system
  • Useful to operate, diagnose, troubleshoot,
    reconfigure, upgrade, and repair system and its
  • Critical in multiple-computer situations where
    many support staff are likely to work on various

Contents of Site Management Notebook
  • Hardware configuration
  • Operating system configuration
  • Network configuration
  • Software licenses
  • Application software configuration
  • Special operating procedures
  • Warranty and repair information
  • Problem log
  • Backup media log

BasicHardware Installation Tools
  • Screwdriver set
  • Slotted
  • Phillips
  • Nut driver
  • Pliers
  • Regular
  • Needle-nose
  • IC chip extractor/inserter
  • Parts-picker

AdditionalHardware Installation Tools
  • Pocketknife
  • Small parts container
  • Mirror
  • Small flashlight
  • PC Pocket Reference
  • Isopropyl alcohol
  • Lint-free cloth or foam tip brush
  • Antistatic wrist strap
  • Electricians tape
  • Compressed air
  • Circuit tester
  • Multi-meter

Typical Hardware Installation Toolkit
Common Hardware Installation Steps
  • Following hardware installation safety
  • Unpack the system
  • Connect power and signal cables, basic components
  • Install upgrades
  • Test the system

Common Operating System and Network Installation
  • Make backup copies of existing system and data
  • Install operating system software
  • Configure network connectivity
  • Install client software
  • Dial-up networking
  • LAN networking
  • Perform network administrative tasks
  • User accounts
  • Access rights

Common Steps to Install Application Software
  • Determine whether software is compatible with
    hardware and network
  • Make backup copies of user data files
  • Choose type of installation
  • Install special devices drivers
  • Configure application to meet user needs
  • Install organization-specific utilities,
    templates, or style sheets
  • Reboot and test all applications

Application Software Compatibility Issues
  • CPU types the software runs on
  • Amount of memory the software requires
  • Amount of hard drive space the software requires
    for full installation
  • Whether the software is compatible with hardware
  • Whether the software is compatible with the
    users network environment

Installation Media
  • Distribution media is the original vendor copies
    of software
  • CD-ROM
  • Floppy disk
  • Internet download

Installation Types
  • Express (typical or common)
  • Most commonly used features
  • Custom (special or expert)
  • User selects specific features to install
  • Minimal (laptop or space-saver)
  • For users with little hard drive space available
  • Smallest set of functions and features possible
  • Full (maximum or complete)
  • All program features
  • Takes maximum amount of hard drive space

Tips on Applications Software Installation
  • Close all open programs prior to installation as
    a precaution
  • Retain license information, installation key
    codes (in Site Management Notebook), and
    distribution media
  • To reduce staff time to install and maintain
    application software
  • Download or launch software upgrades from server
  • Use an application service provider (ASP), which
    is a vendor that sells or rents access to
    applications software

Wrap-up Tasks
  • Document system settings
  • Back up critical files
  • Create rescue disks
  • Fill out warranty and registration cards
  • Document problems
  • Address ergonomic concerns
  • Make sure user can use the system

Chapter Summary
  • Basic steps to install a computer system
  • Site preparation
  • Hardware installation and configuration
  • Operating system and network installation and
  • Application software installation and
  • Wrap-up tasks
  • Site preparation steps for computer installations
  • Location
  • Ergonomic concerns
  • Power requirements
  • Network connectivity
  • Air conditioning
  • Lighting
  • Fire suppression precautions

Chapter Summary (continued)
  • A Site Management Notebook organizes information
    about a system in a convenient location
  • Hardware installers need a variety of mechanical
    tools to aid with installation tasks
  • Hardware installers follow several safety
    precautions when working inside the system unit
  • Installers develop check lists of installation
    procedures for
  • Hardware
  • Operating system and network software
  • Application software
  • Wrap-up tasks
  • The ultimate measure of installation success Is
    the user satisfied?
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