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The Mac Dock is a rectangular strip that contains both program icons and file icons. To help keep your icons organized, the Dock places Program icons on the left side of a divider and File icons on the right side. You can also move, resize, magnify, or hide the dock.
![Black dot under icons on macbook Black dot under icons on macbook](/uploads/1/2/6/5/126593403/336885866.png)
Yosemite appears to use black dot indicators for running apps on the dock, rather than lights. I'm using my mac as a development machine and after the latest osx update my console is literally broken and unusable: No color highlighting. Jan 05, 2013 Mac OSX works differently than what Windows does when it comes to closing windows and programs. Mac users that come from windows typically are leaving programs running and do not even know it.
Besides acting as a convenient place to store and find frequently used programs and files, the Dock can also tell you which programs are currently running by displaying a glowing dot under the icon of each running program.
Moving the Dock
The Dock initially appears at the bottom of the screen, but you can move it to the left or right of the screen. (You can’t move the Dock to the top or else it would cover up the menu bar.)
To move the Dock to a new location, follow these steps:
- Choose the Apple key→Dock→Dock Preferences.A submenu appears which lets you change the position of the Dock.
- Click a new position — Left, Bottom, or Right.A check mark appears next to your selection, and the Dock makes its move.
Resizing the Dock
The Dock can grow each time you add more Program or File icons to it. However, you may want to modify the size of icons on the Dock so that the Dock as a whole doesn’t appear too small or too large.
- Choose the Apple key→Dock→Dock Preferences.The Dock Preferences dialog box appears.
- Drag the Size slider to adjust the size of all icons on the Dock.
- Click the Close button of the Dock Preferences window.The individual icons on the Dock are resized according to your wishes.
Dot Under Icons On Mac
Another way to resize the Dock is to move the pointer over the Dock divider, hold down the left mouse button, and drag the mouse left or right.
Magnifying the Dock
The more icons you store on the Dock, the smaller all icons appear as the Dock shrinks to squeeze all icons on the Dock. When icons appear too small, it can be hard to see which icon the mouse is pointing at. To help identify the icon that the pointer is over, you can turn on magnification, which basically pumps up any icon beneath the pointer.
- Choose the Apple key→Dock→Dock Preferences.The Dock Preferences dialog box appears.
- Select (or clear) the Magnification check box.
- Drag the Magnification slider to adjust the magnification of the Dock.
- Click the Close button of the Dock Preferences dialog.
For a fast way to turn magnification on or off, choose the Apple key→Dock→Turn Magnification On (Off).
Hiding the Dock
The Dock may be convenient, but it can clutter up the screen. To get all the advantages of the Dock without seeing it all the time, you can hide the Dock. Hiding the Dock means that the Dock tucks itself out of sight, but as soon as you move the mouse near the edge of the screen where the Dock is located (bottom, left, or right), the Dock pops into view.
To hide (or show) the Dock, click the Apple menu and choose the Apple key→Dock→Turn Hiding On (Off).
In iOS 7, from time to time, a pale bue dot will appear in front of the app's name. What is that exactly?
Black Dot Under App On Mac
For example, if you look closely, you may see something like this on your iPad or iPhone.
Those pale blue dots are not the Earth, as seen from 6 billion kilometers by Voyager 1. Rather, they indicate that the app was recently updated and has not yet been launched since the update.
The pale blue dot will appear either if iOS 7 updated the app with Automatic Updates or if the user updated it manually. (Here's a Quick Tip on how to turn Automatic Updates on and off.)
After you launch that newly updated app, the blue dot will be gone.
Black Dot Under Icons On Macbook
The ostensible reason for the the blue dot is to let the user know that an app has been updated. If the user wasn't expecting that or didn't want that, it's a good thing to know before the app is launched.