HFS+ (HFS Plus)

HFS+ (Hierarchical File System Plus), also known as Mac OS Extended, is a file system used by Apple’s Mac computers. It organizes and manages files on hard drives or SSDs, allowing for efficient storage, retrieval, and management of data. HFS+ supports features like file permissions, journaling for data integrity, and metadata (extra information about files). Introduced in 1998, it improved upon earlier systems by handling larger files and drives, providing a reliable way for Macs to store and access data consistently. It is primarily used in macOS before the transition to APFS (Apple File System).