Apple LC 575 manual Avoiding fatigue, Shoulders relaxed Forearms and hands in a straight line

Page 16

mPosition your mouse at the same height as your keyboard. Allow adequate space to use the mouse comfortably.

mArrange the computer so the top of the screen is slightly below your eye level when you’re sitting at the keyboard. The best distance from your eyes to the screen is up to you, although most people seem to prefer 18 to 28 inches (45 to 70 cm).

mPosition the computer to minimize glare and reflections on the screen from overhead lights and windows.

Avoiding fatigue

mChange your seated position, stand up, or stretch whenever you start to feel tired. Frequent short breaks are helpful in reducing fatigue.

mUse a light touch when typing or using a mouse and keep your hands and fingers relaxed.

Some computer users may develop discomfort in their hands, wrists, or arms after intensive work without breaks. If you begin to develop chronic pain or discomfort in your hands, wrists, or arms, consult a qualified health specialist.

Shoulders relaxed

Forearms and hands in a straight line

45–70 cm (18–28 in.)

Top of the screen at or slightly below eye level (You may need to adjust the height of your computer by placing something under it or by raising your work surface.)

Forearms level or tilted up slightly

Screen positioned to avoid reflected glare

 

Lower back supported

Clearance under work surface

Thighs horizontal

Feet flat on the floor

10 Setting Up

Image 16
Contents Getting Started Apple Computer, Inc Contents Installing System Software Iv ContentsCommunications regulation information Move the computer farther away from the television or radioExposure. s Class 1 labelSetting Up Setting Up Socket end of the power cordPlugging in the computer Connecting the mouse and keyboard ADB portComputer. The top of the switch is marked with an Power keyProblems starting up? Safety instructions Health-related information about computer use Musculoskeletal discomfort Eye fatigue Arranging your officeShoulders relaxed Forearms and hands in a straight line Avoiding fatigueForearms level or tilted up slightly What’s next? Learning the Basics Use your hand to scoot the mouse along the tableBy the way Macintosh HD stands for Macintosh hard disk Put the tip of the arrow inside this picture Now your screen should look like the following illustration Turning the computer on and off Shutting down the computer with a menu command Press the Power key marked with the P icon on the keyboardTurning on the computer Click Shut DownUse these buttons to Change the volume Computer’s sound On adjusting the keyboard heightGuide for information on OptionalYou can use the screws Your Computer at a GlanceSpecial Features Adjusting the soundUsing the Sound control panel Sound control buttonsUsing the Screen control panel Adjusting the screenScreen control buttons Disabling the buttons on the front of your computer Saving energy Using the built-in microphone Installing an expansion cardTo install an expansion card Continues Slide the logic board back Replace the back panel of the computer Using memory efficiently Using a RAM disk for temporary storageConnecting to a network Using a modem Starting up your computer from an external hard diskInstalling System Software Installing System SoftwareUsing the CD as your startup device If you see a blinking question mark on your screenIf you see the Macintosh desktop On the desktop, click Install System Reinstalling system softwareWelcome dialog box that appears, click OK Custom installations Installer dialog box, click InstallClick a button to select the disk image you want to copy On the desktop, click the Disk Images tabClick Disk Images Dialog box that appears, click Make a Copy Copying the Macintosh Basics tour Open the Applications folderApple Publishing System