Acer Aspire One AOD250 manual Finding your comfort zone, Taking care of your vision

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xi

Finding your comfort zone

Find your comfort zone by adjusting the viewing angle of the monitor, using a footrest, or raising your sitting height to achieve maximum comfort. Observe the following tips:

•refrain from staying too long in one fixed posture

•avoid slouching forward and/or leaning backward

•stand up and walk around regularly to remove the strain on your leg muscles

•take short rests to relax your neck and shoulders

•avoid tensing your muscles or shrugging your shoulders

•install the external display, keyboard and mouse properly and within comfortable reach

•if you view your monitor more than your documents, place the display at the center of your desk to minimize neck strain

Taking care of your vision

Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive room lighting, poorly focused screens, very small typefaces and low-contrast displays could stress your eyes. The following sections provide suggestions on how to reduce eyestrain.

Eyes

•Rest your eyes frequently.

•Give your eyes regular breaks by looking away from the monitor and focusing on a distant point.

•Blink frequently to keep your eyes from drying out.

Display

•Keep your display clean.

•Keep your head at a higher level than the top edge of the display so your eyes point downward when looking at the middle of the display.

•Adjust the display brightness and/or contrast to a comfortable level for enhanced text readability and graphics clarity.

•Eliminate glare and reflections by:

•placing your display in such a way that the side faces the window or any light source

•minimizing room light by using drapes, shades or blinds

•using a task light

•changing the display's viewing angle

•using a glare-reduction filter

•using a display visor, such as a piece of cardboard extended from the display's top front edge

•Avoid adjusting your display to an awkward viewing angle.

•Avoid looking at bright light sources, such as open windows, for extended periods of time.

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Contents User Guide Aspire one SeriesPage Turning the product off before cleaning Information for your safety and comfortSafety instructions Using electrical power Product servicing Guidelines for safe battery usageReplacing the battery pack Telephone line safety Medical devices Additional safety informationOperating environment Emergency calls VehiclesPotentially explosive environments Mercury advisory Disposal instructionsTips and information for comfortable use Taking care of your vision Finding your comfort zoneDeveloping good work habits Turning your computer on and off Basic care and tips for using your computerFirst things first Your guidesTaking care of your AC adapter Taking care of your computerPlease refer to Frequently asked questions on Taking care of your battery packCleaning and servicing Xvi Contents Securing your computer Acer eRecovery Management Acer eRecovery ManagementLaunching Acer eRecovery Management Function Description IndicatorsFunction Left button Right Main touchpad Button TouchpadTouchpad basics with two-click buttons Using a computer security lock Lock key Description Using the keyboardDesired access Num Lock on Num Lock off Lock keys and embedded numeric keypadKey Windows keysKeyDescription ApplicationHotkey Icon Function Description HotkeysUS dollar sign Euro symbolSpecial keys only for certain models No audio is heard from the computer Frequently asked questionsNothing appears on the screen Printer does not work Keyboard does not respondBefore you call Requesting serviceInternational Travelers Warranty ITW Maximizing the batterys life Battery packBattery pack characteristics Installing and removing the battery pack Optimising battery life Charging the batteryChecking the battery level Situation Recommended Action Battery-low warningPreparing the computer Disconnecting from the desktopTaking your notebook PC with you Moving aroundWhat to take with you Taking the computer homeWhat to bring to meetings Special considerations Setting up a home officeTraveling with the computer What to bring with you Traveling internationally with the computerSecuring your computer Using a computer security lockUsing passwords Setting passwords Entering passwordsConnectivity options Built-in network featureExpanding through options Universal Serial Bus USB Bios utilityBoot sequence Enable disk-to-disk recoveryPassword Power managementError messages Corrective action Troubleshooting tipsError messages English Operation conditions Regulations and safety noticesFCC notice Declaration of Conformity for EU countries LCD pixel statementRadio device regulatory notice General Remarque à lintention des utilisateurs canadiensList of applicable countries FCC RF safety requirementEuropean Union EU English LCD panel ergonomic specifications Index