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The Seagate Barracuda is a series of hard disk drives and later solid state drives produced by Seagate Technology that was first introduced in 1993. [ 3 ] The line initially focused on high-capacity, high-performance SCSI hard drives until introducing ATA models in 1999 and SATA models in 2002.
This smaller form factor is similar to that used in an HDD by Rodime in 1983, which was the same size as the "half height" 3 + 1 ⁄ 2 in (89 mm) FDD, i.e., 1.63 inches (41 mm) high. Today, the 1-inch high ("one-third height", "slimline", or "low-profile") version of this form factor is the most popular form used in most desktops and data centers.
It was the first hard disk to fit the 5.25-inch form factor of the Shugart mini-floppy drive. It used a Modified Frequency Modulation (MFM) encoding [6] [7] and was later released in a 10 MB version, the ST-412. With this, Seagate secured a contract as a major OEM supplier for the IBM XT, IBM's first personal computer to contain a hard disk.
M.2 form factor, formerly known as the Next Generation Form Factor (NGFF), is a natural transition from the mSATA and physical layout it used, to a more usable and more advanced form factor. While mSATA took advantage of an existing form factor and connector, M.2 has been designed to maximize usage of the card space, while minimizing the footprint.
The backup software is Apple's Time Machine, which, by default, makes hourly images of the files that are being changed, and condenses backup images as they become older, to save space. Even when using an 802.11n wireless or Gigabit Ethernet connection, the initial backup of any Mac to the drive requires significant time; Apple suggests that ...