Apple MC561LL/A User Manual Page 120
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120 Chapter 6 Last, but Not Least
Understanding Ergonomics
Herearesometipsforsettingupahealthyworkenvironment.
Keyboard
Whenyouusethekeyboard,yourshouldersshouldberelaxed.Yourupperarmand
forearmshouldformanapproximaterightangle,withyourwristandhandinroughly
astraightline.
Changehandpositionsoftentoavoidfatigue.Somecomputerusersmightdevelop
discomfortintheirhands,wrists,orarmsafterintensiveworkwithoutbreaks.Ifyou
begintodevelopchronicpainordiscomfortinyourhands,wrists,orarms,consulta
qualiedhealthspecialist.
Mouse
Positionthemouseatthesameheightasthekeyboardandwithinacomfortablereach.
Chair
Anadjustablechairthatprovidesrm,comfortablesupportisbest.Adjusttheheight
ofthechairsoyourthighsarehorizontalandyourfeetareatontheoor.Thebackof
thechairshouldsupportyourlowerback(lumbarregion).Followthemanufacturer’s
instructionsforadjustingthebackresttotyourbodyproperly.
Youmighthavetoraiseyourchairsothatyourforearmsandhandsareattheproper
angletothekeyboard.Ifthismakesitimpossibletorestyourfeetatontheoor,use
afootrestwithadjustableheightandtilttomakeupforanygapbetweentheoorand
yourfeet.Oryoucanlowerthedesktoptoeliminatetheneedforafootrest.Another
optionistouseadeskwithakeyboardtraythat’slowerthantheregularworksurface.
- Welcome to your Mac Pro 2
- OS X Lion 3
- Contents 5
- 6 Contents 6
- Ready, Set Up, Go 9
- Setting Up Your Mac Pro 11
- Power cord socket 12
- Power cord plug 12
- Step 3: Connect the display 13
- Gigabit Ethernet ports 15
- MouseKeyboard 16
- Indicator light 17
- On/off switch 17
- Need Help Setting Up? 20
- Putting Your Mac Pro to Sleep 21
- Shutting Down Your Mac Pro 22
- Life with Your Mac Pro 23
- C)toopenit 25
- C)toremoveadisc 27
- Internal Expansion Options 32
- Getting Answers 34
- More Information 34
- K)>SystemPreferences. 35
- Making a Good Thing Better 37
- Opening Your Mac Pro 39
- Touch the metal 40
- Installing Memory 43
- One processor Two processors 44
- Processor tray 48
- EjectorsNotchConnectors 50
- 9 Replacethesidepanel 52
- Drive carrier 62
- Connectors 63
- ScrewsUnused screws (2) 66
- Replacing an Optical Drive 68
- Cable middle 72
- Cable end 72
- Adding PCI Express Cards 74
- About PCI Express Cards 74
- Port access cover 75
- PCI bracket 75
- Hook on card 77
- Retention bar 77
- PCI Express slotPCI slider 77
- Problem, Meet Solution 81
- An Ounce of Prevention 82
- Problems with Your Mac Pro 83
- Problems with Software 85
- Problems with Your Display 93
- )andOptionkeys 95
- BatteriesLatch 98
- AppleCare Service and Support 100
- Locating Your Serial Number 102
- What’s Under the Hood 103
- Specications 104
- Graphics Card 105
- Video Display Modes 106
- PCI Express Expansion 106
- Â Data formats: 107
- FireWire Specications 108
- Ethernet Specications 108
- USB Specications 108
- AirPort Extreme Specications 109
- Analog Audio Specications 110
- Power Supply 112
- System Clock and Battery 112
- Last, but Not Least 115
- Important Safety Information 116
- General Maintenance 117
- Protecting Your Optical Drive 118
- Maintaining Your Display 119
- Understanding Ergonomics 120
- Keyboard 120
- Avoid Hearing Damage 122
- Apple and the Environment 122
- FCC Compliance Statement 123
- Wireless Radio Use 123
- Canadian Compliance Statement 124
- ૬ႜෟა༘ 125
- Taiwan Battery Statement 127
- Chinese Battery Statement 127
- Looking for Something? 129
- K AppleInc. 135
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