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~/Library/Preferences: a user-level Library folder that is accessible by, and affects, the current working user.
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The ~ (tilde) represents the current user’s home directory. The full path for this library expands to /Users/currentuser/Library/Preferences.
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macOS can be installed in several ways.
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MacOS is pre-installed on any Mac purchased directly from Apple. The Mac App Store offers a free macOS Installer app, used to install or upgrade macOS.macOS Recovery can be used to upgrade or reinstall macOS.
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Storing data on a disk requires the disk to be formatted with a partition map.
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A partition map allows macOS to manage information separately on each partition.
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After a partition map is created, partitions are added to divide the disk into volumes. Each volume contains a file system.
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Disk Utility is an application for viewing and modifying partitions and volumes on connected hard drives.
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Disk Utility is located in /Applications/Utilities. Disk Utility can create and remove partitions from disks or containers. Disk Utility can resize partitions without affecting existing data. By default, only volumes appear in macOS High Sierra. To view all devices, click View and select Show All Devices.
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MacOS includes four visible root directories, also called folders
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Applications: native apps and most third-party apps are installed in this location Library: native macOS preferences, third-party app preferences, app support files, and utilities can be found in this location System: macOS core resources and essential services are stored in this location Users: local user home folders are typically stored in this location The root user, system users, the management account, and intentionally hidden users are exceptions to this standard.
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Investigate the macOS storage structure on a Mac running macOS 10.13 High Sierra.
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Identify how to add an additional partition to a Mac
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Locate the default directories on macOS.
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Attempt to add items to the Desktop of the “will” local user account.
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A macOS app (application) is a purpose-built collection of files that function together
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An app is a computer program that performs a specific task, such as a word processor or messenger.
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Mac apps can be found in the App Store or obtained from other sources.
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The App Store contains apps vetted by Apple. An internet connection and Apple ID are required to purchase and download these apps Other sources may include downloading directly form a developer, a shared disk, or a physical disk. Apps obtained outside the App Store do not require an Apple ID
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An Apple ID is the account used to manage and download the content purchased from the App Store, iTunes Store, or iBooks Store
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Signing in with an Apple ID allows users to download previously-purchased content on their Mac.
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To install an app from the Mac App Store
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