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Chapter
12
Chapter
Module 12A Buying & Upgrading Your Computer System
Module 12B Avoiding Risks to Your Health
Module 12C Careers and Certification
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12
Buying & Upgrading Your Buying & Upgrading Your Computer SystemComputer System
Get started the right way Anticipate your software needs Choose the right hardware Get the right printer Shop wisely Caring for your computer system Upgrading your system
ModuleA
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Buying & Upgrading Your Buying & Upgrading Your Computer SystemComputer System
ModuleA
Savvy college students know that computer ownership is a wise move. Owning a computer is the best way to ensure computer literacy. Employers are
demanding higher levels of computer literacy than ever before. According to a recent study, more than
83 percent of surveyed employers described computer literacy as “important” or “very important”
in a hiring decision.
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Get Started the Right WayGet Started the Right Way Notebook
or desktop?ModuleA
Buying & upgrading your computer system
Don't be seduced by the power of notebook computers for your use in class. During a lecture, a notebook forces
you to restrict your note-taking to text only, and notebooks are easy to lose or steal
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Get Started the Right WayGet Started the Right Way Mac or PC? Top-of-the-line or bargain bin special?
ModuleA
Buying & upgrading your computer system
Macs have a strong niche market in artistic fields, such as publishing, music, graphics, illustration, and Web site
design. PCs figure prominently on the desktops of engineers and business people
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Buying . . .Buying . . . Anticipate your software needs Choose the right hardware
processors clock speed
memory ram secondary cache
AModule
Buying & upgrading your computer system
Check the Web for Product reviews. For reviews of Windows PC hardware, try PC Magazine. For Macs, try MacWorld.
Follow the links to the search page.
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Buying . . .Buying . . . Hard disks
CD-ROM driveDVD driveZip drive
AModule
Buying & upgrading your computer system
DVD disks can store more data than CD-ROM discs. A DVD
drive also will read ordinary CD-ROM discs
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Buying . . .Buying . . . Video cards & Monitors
SVGAVRAMAGPgraphics acceleratordot pitch
AModule
Buying & upgrading your computer system
A 17-inch monitor is considered to be the industry standard.
12
Buying . . .Buying . . . Modems Network cards
ethernet Sound Uninterruptible
power supply (UPS)
AModule
Buying & upgrading your computer system
An Ethernet card
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Buying . . .Buying . . .
Get the right printer
Shop wisely
AModule
Buying & upgrading your computer system
If you buy a computer locally, you can resolve problems quickly by going back to the store
12
Buying . . .Buying . . . Buying used Name-brand Windows PCs Generic Windows PCs Building your own Windows PCA
Module
Buying & upgrading your computer system
To compare prices from several vendors, take a look at NetBuyer or PC-Today
Use the Internet to find out the going prices for used PCs and Macintoshes. The United Computer Exchange (UCE) includes
links to the United Index of Used Microcomputer Prices
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Buying . . .Buying . . . Caring for your computer system
equip your system with a surge protectordon’t plug your dorm refrigerator in the same outletmake sure there is sufficient air circulationmake sure the cables aren’t stretched or smashedavoid eating or drinking while using the computerdon’t switch off the power without following the proper shut-down procedurerun a disk defragmentation programGet a virus checker & run it frequently
AModule
Buying & upgrading your computer system
12
Upgrading Your SystemUpgrading Your System
Removing the cover
Adding expansion boards
AModule
Buying & upgrading your computer system
A 100 MHz motherboard. Most motherboards have four SIMM sockets, or two to three DIMM sockets
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Upgrading Your SystemUpgrading Your System Upgrading memorySIMMsDIMMs(FPM) DRAM(EDO) DRAMSDRAMgrounding strap
Replacing the cover
AModule
Buying & upgrading your computer system
Kingston, a leading marketer of memory chips, provides detailed information on memory upgrades.
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Avoiding Risks to Avoiding Risks to Your HealthYour Health
Eyesight Problems Cumulative Trauma Disorder
ModuleB
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Eyesight ProblemsEyesight Problems Computer vision syndrome (CVS) Preventing CVS
blink oftenreduce glareeliminate screen flickeradjust monitor’s positionclean your screentake a break
BModule
Avoiding risks to your health
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Eyesight ProblemsEyesight Problems Accessories for eye
protectionspecial computer glassescomputer eye washmagnification systemglare shield
BModule
Avoiding risks to your health
Bausch and Lomb's MagniViewer enables users to
maintain focus on the computer screen from a greater distance
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Cumulative Trauma Cumulative Trauma Disorder Disorder (CTD)(CTD)
BModule
Avoiding risks to your health
CTD, also called repetitive strain injury (RSI), is caused by constantly repeated
motions and exertions that eventually cause pain and may lead to physical impairment.
CTD diagnoses have increased by nearly 800 percent in the last decade
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Cumulative Trauma Cumulative Trauma DisorderDisorder
Computer-related CTDstendonsnerves
carpal tunnel syndrome (CTS)BModule
Avoiding risks to your health
Typing on a computer keyboard and moving a mouse can cause CTDs such as tendonitis and carpal tunnel syndrome
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Cumulative Trauma Cumulative Trauma DisorderDisorder
Symptoms of CDTsweakness in the hands & forearmsfatigue, lack of endurance, feeling of heavinesshyperawareness of hands or forearmsfrequent clumsiness, lack of control or coordinationstiff, cramped, or swollen handsdifficulty opening, closing, or using handstendency of the hands to fall asleepwaking up with wrist pain or numb handspain or soreness
BModule
Avoiding risks to your health
12
Cumulative Trauma Cumulative Trauma DisorderDisorder
How serious are CDTs?
BModule
Avoiding risks to your health
You can reduce the risk of contracting a cumulative trauma disorder if you observe some precautions when typing at the
keyboard
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Cumulative Trauma Cumulative Trauma DisorderDisorder
Accessories for CDT preventionreminder softwareergonomic keyboardsspeech recognition softwarealternate pointing devicesergonomic chair
BModule
Avoiding risks to your health
An ergonomic chair keeps pressure off the backbone by supporting each side of your back
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Cumulative Trauma Cumulative Trauma DisorderDisorder
BModule
Avoiding risks to your health
Learn more about the anatomy, diagnosis, and surgical treatments associated with carpal tunnel syndrome
Hunter Digital makes a foot controlled mouse to prevent CTDs.
Grahl Industries specializes in ergonomic chairs, keyboard armrests, and other aids designed to prevent
RSIs
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Careers and Careers and CertificationCertification
Traditional information technology (IT) career paths
New information technology (IT) career paths New technologies, new jobs Effect of computers on overall employment
ModuleC
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Training for Traditional Training for Traditional IT CareersIT Careers
Computer Science (CS) Computer Information Systems (CIS) Systems Engineering Electrical Engineering (EE)
CModule
Careers & Certification
What’s the right career for you in information technology? Get some insight into this question by taking the Microsoft Skills 2000 Information Technology Aptitude test. You answer questions on-
screen, and see the results right away.
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Traditional Methods of Traditional Methods of Continuing EducationContinuing Education
Training seminars Magazines, newspapers, & journals Conferences & shows
CModule
Careers & Certification
COMDEX is an annual event held in various locations around the world.
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Traditional Methods of Traditional Methods of Continuing EducationContinuing Education
Professional organizationsAssociation for Computing Machinery (ACM)Association for Women in Computing (AWC)Data Processing Management Association (DPMA)Network Professional Association (NPA)
CModule
Careers & Certification
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New IT CareersNew IT Careers Sought-after
business skillsteamworkproject managementcommunicationsbusiness savvy
CModule
Careers & Certification
IT professionals work in teams with other professionals from finance, marketing, and other corporate divisions
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New IT CareersNew IT Careers Sought-after technology skills
networkingMicrosoft Windows NTUnixTCP/IPC++Microsoft Visual Basic
CModule
Careers & Certification
12
New Technologies, New Technologies, New JobsNew Jobs
CModule
Careers & Certification
Job Title Responsibilities
Interactive DigitalMedia Specialist
Using multimedia software to create engagingpresentations, including animation and video.
Webmaster Design and maintain a Web server and relateddatabase servers.
Web ApplicationEngineer
Design, develop, test, and document new Web-based services for Web sites.
Web Specialist Work with internal and external customers tocreate high-quality content pages for Web site.
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Careers & CertificationCareers & Certification Certification
benefits of certificationrisks of certification
Effect of computers on employmentautomationstructural unemployment
CModule
Careers & Certification
Computer-guided robots are handling many manufacturing jobs that people
once held
