Magnetic disks tend to come in two varieties: the hard metal platters inside hard drives and the more flexible magnetic platters inside floppy disks. As of 2014, most hard drives use either 3.5- or 2.5-inch platters, while the only floppies still in use are 3.5-inch designs.Continue Reading
Hard drives designed for use in desktop PCs tend to use the 3.5-inch form factor, while the smaller 2.5-inch drives are designed for use in laptops. Some specialty desktop designs, especially mini ITX systems and small machines, may also use the 2.5-inch form factor to save space.
While 3.5-inch floppy disks are still manufactured as of 2014, most computers do not ship with a floppy drive installed, and many motherboards do not even support the technology anymore.Learn more about Digital Storage
IDE is a standard mode of communication between a hard drive and a SATA-enabled motherboard, whereas AHCI is a newer, faster and more customizable mode of communication between hard drives and motherboards. When compatibility is not an issue, AHCI is the better of the two options because it gives better read and write times and more extensive design support than the older IDE does.Full Answer >
Desktop external hard drives offered by Seagate include the Backup Plus Desktop Drive, Backup Plus Desktop Drive for Mac, Personal Cloud Home Media Storage, and Expansion Desktop. Laptop external hard drives offered include the Seven Portable Drive, Backup Plus Fast Portable Drive, and Backup Plus Slim Portable Drive for Mac.Full Answer >
When comparing back-up hard drives, some criteria to consider include each hard drive's type, speed, connectivity and amount of storage space. Back-up drives are typically external hard drives with some degree of portability. These include universal serial bus flash drives, disk-based hard drives and solid-state hard drives, as of 2015.Full Answer >
The first 8-inch floppy disks created in the 1970s had a capacity of 80 kilobytes. By 1986, IBM improved its design, resulting in the 3.5-inch floppy disk, which had a maximum capacity of 1.44 megabytes.Full Answer >