Coriolis was started in 2004, initially to develop a tool for non-destructive re-partitioning of HFS+ disks, but its founder Alastair Houghton was soon offering iDefrag, which became a popular defragging tool. The story of defragging on the Mac is perhaps best illustrated in the rise and fall of Coriolis Systems and iDefrag. Who now spends time every few weeks defragging anything? Even if you didn’t believe in the importance of defragging your files, you knew that you should defrag free space, and that rising fragmentation could seriously impair your Mac’s performance. That’s why fragmentation of data has been so important in computer storage.Ĭast your mind back a few years, and one of the essential software utilities every serious Mac user had and used was something to defragment (defrag) their hard disks. If all its volumes are kept in sequence on a single shelf, that’s far quicker. If someone has tucked each volume away in a different location within the stack, assembling those you need is going to take a long while. When you need to consult several consecutive volumes of such a work, how they’re stored is critical to the task. Major reference works are often published in a series of volumes. Storage is only half a concept, its essential companion being retrieval.Ĭonsider a large library containing tens or even hundreds of thousands of books.
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