How much space do duplicate files take up on your iPad? In theory, they use no extra storage. Thanks to the design of the Apple File System (APFS) used on iOS and macOS, duplicating a file doesn’t ...

Reclaim gigabytes of space on your Mac by managing large files, optimizing system settings, and clearing hidden system data.

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...