An effective UPS doesn’t need to cost the earth, so we love that the APC Back-UPS 425VA is a reliable backup power source that’s easy to afford. This compact device offers six outlets, two with surge protection and four battery backup outlets. It’s easy to fit in any office and it includes a 5’ power cord. A UPS battery backup power supply for computer helps you to survive in the situation when there is a power loss or no primary source of power to your PC. Battery backup surge protector is also quite useful as it saves your device from getting excessive power.
I don't believe the shutdown command gets issued immediately by a UPS upon power loss. If the UPS predicts it can power it's load for, say, 60 minutes, then it will allow most of that runtime before going through the shutdown sequence. At least that's how I understand things.
Jul 18, 2010 12:24 PM
Back up with Time Machine
Automatically back up all your files with Time Machine, which is built in to your Mac, or choose another backup method.
Create a backupStore files in iCloud
You can also use iCloud and iCloud Drive to store files, such as your photos, documents, and music.
Set up iCloud and iCloud DriveRestore your Mac from a backup
When you have a backup, you can use it to restore your files at any time, including after the original files are deleted from your Mac.
Restore from a backupPrepare your Mac for service
Making a backup is an important part of preparing your Mac for service, especially because some types of repair might require erasing or replacing your hard drive.
Get your Mac ready for serviceHow much space do I need for a backup?
To see the size of a specific file or folder, click it once and then press Command-I. To see storage information about your Mac, click the Apple menu in the top-left of your screen. Choose About This Mac and click the Storage tab. For Time Machine backups, it's good to use a drive that has at least twice the storage capacity of your Mac.
Free up storage on your Mac
macOS can save space by storing your content in the cloud. This isn't a backup, but it includes new tools to make it easier to find and remove large or unwanted files before you make a backup.
Use Optimized Storage in macOS
Erase or format a storage device
You can use Disk Utility if you need to erase or format a storage device.
Learn how to use Disk UtilityHave a question?
Mac Backup
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