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). (You can also buy them in 2.5″ format to install in a laptop, or in an external enclosure.) When they’re built into a computer, in appearance they’re just a few chips on a circuit board. Solid state drives, or SSDs, use flash memory to store data. This latter point may not bother most people, but I prefer not to hear anything spinning in my Macs. They are also heavier and they make noise. As a disadvantage, however, they have moving parts, which means they are susceptible to failure if something goes wrong or if you drop a laptop containing a hard drive. In terms of cost for storage, hard drives are the cheapest. Disk manufacturers have released drives that are 10 and 12 TB, and we should even see a 16 TB hard drive later this year. This disk was a lot slower than current hard disks, spinning at only 2,744 RPM.Ĭurrent hard drives generally spin at 5,400 or 7,200 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.) From the limited 20 MB storage devices sold in the 1980s, we have gone to the relatively common capacity of 4 TB (even 8 TB for hard drives). Of course, they weren’t always cheap. In 1985, Apple sold a 20 MB hard disk for the astounding sum of $1,495. They are reliable, have large capacities, and are relatively inexpensive. Ignoring the rise and fall of the floppy disk, for a long time, hard disks were the most common storage devices. In this guide, you will learn what the difference is between the different types of drives as well as the advantages and disadvantages of each. You might be curious to know, what’s the right hard disk for your Mac? Choosing which drive to use in a computer involves a trade-off between speed, capacity, and cost. And you can buy external or internal drives of three types: SSD, hybrid (fusion) drive, or hard drive. Macs are currently sold with three types of storage devices: hard drives (only in the base 21.5″ iMac and Mac mini), SSDs, and fusion drives. An iPhone or iPad contains flash memory, and a desktop or laptop computer contains either a solid state drive (SSD), which is flash memory, or a hard disk. Apple + How To How to Choose the Right Hard Disk for Your MacĮvery computing device you own contains some sort of storage.

1tb solid state drive for macbook pro