Ignoring the rise and fall of the floppy disk, for a long time, hard disks were the most common storage devices.
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They are reliable, have large capacities, and are relatively inexpensive. Of course, they weren't always cheap. This disk was a lot slower than current hard disks, spinning at only 2, RPM. Current hard drives generally spin at 5, or 7, RPM, though there are some that are faster. Performance is not just about speed, there are other features that can make a drive read or write data faster.
Disk manufacturers have released drives that are 10 and 12 TB, and we should even see a 16 TB hard drive later this year. In terms of cost for storage, hard drives are the cheapest. They are also heavier and they make noise. This latter point may not bother most people, but I prefer not to hear anything spinning in my Macs.
Solid state drives, or SSDs, use flash memory to store data. When they're built into a computer, in appearance they're just a few chips on a circuit board. You can also buy them in 2. SSDs are compact, quiet and very fast, especially when you start up a computer or wake the computer hard disks may go to sleep when not used for a certain time, and take a few seconds to spin up.
SSDs also use less power, run cooler, are lighter, and have no moving parts, which makes them ideal for laptops. If you drop a laptop when its hard drive is spinning, the drive can be damaged, and you can lose data. SSDs tend to be more reliable overall, and if they fail, you can still read data unless the actual memory chips are damaged , whereas you may not be able to do this with a hard disk.
However, SSDs are much more expensive when you look at the cost to storage ratio. There is another kind of drive that combines the two technologies: The drive copies the most frequently used files to the flash storage, so they can be accessed more quickly.
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This generally includes the operating system, apps you use often, and files you access regularly. The first time you boot and launch apps, files are read from the hard disk, and then moved to the SSD part of the drive; subsequently, accessing those files is much faster. These drives offer a compromise between speed and storage, still being a bit slower than SSDs, but at a much nicer price point: The speed and reliability of SSDs make them the ideal solution for today's computers.
And Apple's laptops are only offered with SSDs. The larger SSD element means more files can be cached, and your Mac will run a lot faster. Page content loaded. Jan 30, 9: Jan 30, Feb 4, Communities Contact Support.
Internal hard drives buying guide | Macworld
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User profile for user: I just want to be sure before I purchase one because Apple specifies in the tech specs that the bays support up to 1TB. Much appreciated! More Less. Reply I have this question too I have this question too Me too Me too.
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Question marked as Solved User profile for user: I have two internal and two external in esata configs.