marvel-media.com

marvel-media.com



Drive makers have been talking about new technologies for many years, but so far PMR has continued to scale dramatically. Manufacturers typically can now store 320GB on a single 2.5-inch platter, which is why 640GB drives are a common size. A year from now, we may see that grow to about 500GB per platter, making 1TB 2.5-inch drives common and a three-platter, 1.5TB, 2.5-inch drive possible. In desktop 3.5-inch drives, we now commonly see 500GB per platter, making 1TB 2.5-inch drives common and a three-platter, 1.5TB, 2.5-inch drive possible. In desktop 3.5-inch drives, we now commonly see 500GB per platter, making 1TB 2.5-inch drives common and a three-platter, 1.5TB, 2.5-inch drive possible. In desktop 3.5-inch drives, we now commonly see 500GB per platter, making 1TB 2.5-inch drives common and a three-platter, 1.5TB, 2.5-inch drive possible. In desktop 3.5-inch drives, we now commonly see 500GB per platter, with a four-platter drive reaching 2TB. This, too, should grow. The real-life performance difference between a hard drive generation and the generation that follows it usually isn’t large enough to justify a replacement. However, there are more aspects to consider. We took a three year old Core 2 Duo desktop PC and installed a similarly-aged Hitachi Deskstar 7K500 drive. We then took Hitachi’s latest desktop drive, the Deskstar 7K2000, and used it as a drop-in replacement for the older 500GB disk. * Most computer hardware is not seen by normal users. It is in embedded systems in automobiles, microwave ovens, electrocardiograph machines, compact disc players, and other devices. As a music jukebox application, iTunes stores a comprehensive library of the user's music on their computer and can play, burn, and rip music from a CD. * (Likely) lower noise levels * Understanding Hard Drive Performance As of July 2006, the lineup consists of the 5th generation iPod, with a video player; the iPod nano, with a color screen; and the iPod shuffle. Discontinued versions include two generations of the iPod mini and four generations of the full-sized iPod, all of which had monochrome screens (except for the iPod shuffle) and provide a simple user interface. The interfaces that connect drives are evolving as well. For enterprise drives, Serial Attached SCSI (SAS) is moving to a new 6-Gbps standard this year. And for external drives, while I expect USB 2.0 to still be dominant along some eSata and FireWire drives. USB 3.0 seems poised to replace it, bringing with it much faster connections. However, I don't expect to see many drives supporting that for a while. It needs chipset support on the client PC, and that isn't yet formally in either AMD or Intel's roadmaps. But the push toward Flash storage has hurt the market for drives effectively shrinking to five players: Seagate, Western Digital, Toshiba (which acquired Fujitsu's hard drive business this year), Hitachi, and Samsung. Even this varies by market—Toshiba does not make desktop drives, while Seagate, Hitachi, and Fujitsu have dominated enterprise drives.