Typical desktop hard disk drives from mid-to-late 1990s revolve at 5,400 rpm and have transfer rates from 3 MB/s to 10 MB/s or more, and average seek times from 20 ms to 14 ms or less. The original Zip drive has a maximum data transfer rate of about 1.4 MB/s (comparable to 8× CD-R although some connection methods are slower, down to approximately 50 kB/s for maximum-compatibility parallel "nibble" mode) and a seek time of 28 ms on average, compared to a standard 1.44 MB floppy's effective ≈16 kB/s and ≈200 ms average seek time. The Zip disk uses smaller media (about the size of a 9 cm ( 3 + 1⁄ 2-inch) microfloppy, but more ruggedised, rather than the Compact Disc-sized Bernoulli media), and a simplified drive design that reduced its overall cost. A linear actuator uses the voice coil actuation technology related to modern hard disk drives. In the Zip drive, the heads fly in a manner similar to a hard disk drive. However, Zip disk housings are much thicker than those of floppy disks. The Zip drive is a "superfloppy" disk drive that has all of the 3 + 1⁄ 2-inch floppy drive's convenience, but with much greater capacity options and with performance that is much improved over a standard floppy drive.
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