The default resolution on your MacBook is probably fine for most users. You can opt for a lower resolution if you want the icons on your screen to appear larger. The higher the resolution, the smaller things will appear. If you add an external monitor in the future, you will want to change the resolution of your MacBook to match that which the monitor can support. Some video games also require certain video resolutions. Check the system requirements on your software package for more information.
Color profiles are used to ensure that colors, as represented on screen, look the same when printed. These profiles are frequently used by professional designers. Various color profiles are available for your MacBook on the Color tab. You can select one from the list or create your own by clicking Calibrate. Generally, you won’t need to touch this tab unless you work with print-ready graphics and art.
Native resolution, as it applies to flat-panel displays, refers to a single fixed resolution. This means that the best picture quality can only be obtained when the input signal matches the native resolution of the monitor or screen. In the past, computers used CRT monitors, which could display images at different resolutions. Now, with LCD and other flat-panel displays, the image must be scaled. This can result in images appearing blocky or distorted at lower resolutions. If you want or need your icons to be larger, you can ctrl-click on your desktop and choose View Options. You can choose a new size for your icons from the resulting pane.
Sound settings let you change more than just the volume and input/output devices. You can also change the sound effect your MacBook uses to alert you when it needs you to take an action, such as approve a system change. To open the Sound panel, choose Sound (in the Hardware category) in System Preferences.
The Output Volume slider runs along the bottom of the Sound pane regardless of which tab you click on. You can adjust or mute the volume here, as well as set the balance. Check Show Volume in Menu Bar to be able to change the volume of your computer without having to open the Sound pane. The Output Volume is the overall volume of your computer. You can also change the volume on your MacBook by using the volume-control keys on your keyboard. They are f10 for Mute/Unmute, f11 for Volume Down, and f12 for Volume Up.
The Sound Effects tab is where you can change your MacBook’s alert sound. The sounds will be played for you as you select each of the available choices. Select the one you like best.
The Output tab is where you select which device your MacBook will use to play music and sounds. Since your laptop comes with built-in speakers, this is what is selected by default. If and when you decided to attach external speakers (highly recommended if you’re a gamer or like to watch movies on your MacBook), you can select those from this tab instead.
Your MacBook also came with a built-in microphone, which is suitable for video chat and voice recording. However, if you want to record music or plan to spend a lot of time making calls from your computer, you’ll probably want to use a headset or other external mic. You can select Line In from the Input tab after you’ve attached your headset to one of the ports on the side of your laptop.
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