Apple's desktop operating system, macOS, has been the staple crop for its iMacs and MacBooks. Here we go back to where it all began in 2001 (when it was known as Mac OS X). Apple Event November 10, 2020. Introducing the new MacBook Air, 13‑inch MacBook Pro, and Mac mini, all with the Apple M1 chip.
Press VO-Right Arrow until you hear “view radio group” and then interact with that control. Press VO-Right Arrow key until you hear the view you want to use.You can choose from icon, list, column, or Cover Flow view. In Cover Flow view, the browser is split horizontally into two sections. The top section is a graphical view of each item, such as folder icons or a preview of the first page of a document. The bottom section is a list view of the items.
To jump, press VO-J. If you’re using VoiceOver gestures, keep a finger on the trackpad and press the Control key.
Icon view: Use the arrow keys to move to the item you want.
List view: To move down the list rows, press VO-Down Arrow. To expand and collapse a folder, press VO-. To move the VoiceOver cursor across a row and hear information about an item, press VO-Right Arrow. Or press VO-R to hear the entire row read at once.
Column view: To move down the list until you find the folder or file you want, use the Down Arrow key. To move into subfolders, press the Right Arrow key.
Cover Flow view: To flip through the items in the top section and move automatically through the corresponding list rows in the bottom section, press the Left Arrow or Right Arrow key.
When you find the file or folder you want to open, use the Finder shortcut Command-O or Command-Down Arrow to open it.VoiceOver announces when you have selected an alias or a file or folder you don’t have permission to open.
OS X v10.5.1 and later include an application firewall you can use to control connections on a per-application basis (rather than a per-port basis). This makes it easier to gain the benefits of firewall protection, and helps prevent undesirable apps from taking control of network ports open for legitimate apps.
Use these steps to enable the application firewall:
Make sure you have updated to Mac OS X v10.5.1 or later. Then, use these steps to enable the application firewall:
Selecting the option to 'Block all incoming connections' prevents all sharing services, such as File Sharing and Screen Sharing from receiving incoming connections. The system services that are still allowed to receive incoming connections are:
To use sharing services, make sure 'Block all incoming connections' is deselected.
To allow a specific app to receive incoming connections, add it using Firewall Options:
You can also remove any apps listed here that you no longer want to allow by clicking the Remove App (-) button.
Applications that are signed by a valid certificate authority are automatically added to the list of allowed apps, rather than prompting the user to authorize them. Apps included in OS X are signed by Apple and are allowed to receive incoming connections when this setting is enabled. For example, since iTunes is already signed by Apple, it is automatically allowed to receive incoming connections through the firewall.
If you run an unsigned app that is not listed in the firewall list, a dialog appears with options to Allow or Deny connections for the app. If you choose Allow, OS X signs the application and automatically adds it to the firewall list. If you choose Deny, OS X adds it to the list but denies incoming connections intended for this app.
If you want to deny a digitally signed application, you should first add it to the list and then explicitly deny it.
Some apps check their own integrity when they are opened without using code signing. If the firewall recognizes such an app it doesn't sign it. Instead, it the 'Allow or Deny' dialog appears every time the app is opened. This can be avoided by upgrading to a version of the app that is signed by its developer.
Enabling stealth mode prevents the computer from responding to probing requests. The computer still answers incoming requests for authorized apps. Unexpected requests, such as ICMP (ping) are ignored.
The application firewall is designed to work with Internet protocols most commonly used by applications – TCP and UDP. Firewall settings do not affect AppleTalk connections. The firewall may be set to block incoming ICMP 'pings' by enabling Stealth Mode in Advanced Settings. Earlier ipfw technology is still accessible from the command line (in Terminal) and the application firewall does not overrule any rules set using ipfw. If ipfw blocks an incoming packet, the application firewall does not process it.