why is usb flash drive maximum transfer rate is 12 MB per second whereas theoretical rate is 60 MB per second.
366623
The flash drive transfer speed is dictated by the speed of the flash chips inside the drive, not the speed of the USB connection.
787561
Double Data Rate...its the faster memory installed on video cards , so the video demands dont have to use the system memory as frequently...as usual , the more, the better..
114375
Firewire is better as it has far faster transfer rates than USB although you will find more products are USB but you can usually buy a firewire cable
301064
USB 2.0 is backwards compatible to USB 1, and vice versa.\n\nHowever, USB 2.0 is much faster than USB 1. And more widely universal these days.
683361
It really doesn't matter. Yea yea USB travels faster but when it comes to keyboards and mouse it travels at the same speed anyway. Go ps/2 so you can add things to your computer later if you need to in your USB ports. USB will not make your mouse or keyboard work faster.
273477
there will be no range of distance that have higher data rate then 150 mbps, cause the fastest device that can take up that 14gb is the harddrive, and even fast drive like sata drive can only write at 6mb/sec, not to mention the limitations on No. of files making up that 14gb, bus, ram etc.
577999
Maybe because you only have an USB 1.1 (12 MBit/s) port instead of a faster USB 2.0 (480 MBit/s) port.
905945
External drives are more for occaisional use - the USB interface is much slower than what you'd get with an internal drive.  \n\nIf you want better performance, get an internal drive.  They're really quite easy to install, and are cheaper than the external ones since they don't have an enclosure.
591535
External hard drives typically connect via USB or Firewire, so just make sure your computer has the appropriate port to connect through.  There is no software needed (unless it's some crazy cheap poor excuse for a hard drive); They'll usually just show up as a new drive letter in your Control Panel as soon as you plug it in.  The data transfer rate and speed are irrelevant as far as compatibility goes, but obviously the faster it is, the more convenient it is for you (and probably the higher the price will be).
839519
Hello,\nThe firewire's speed is 3.2 Gigabytes per second. It has a 6 pin connector, it is a type IEEE 1394 cable, and it can have a maximum of 63 devices connected at 1 time. The Firewire's maximum cable length is 328 feet.
799492
to shorten your long treatise\nFirewire 1394a:  400MBit/s = 50MB/s\nFirewire 1394b:  800MBit/s = 100MB/s\nUSB 2.0: 480MBit/s = 60MB/s  .... all speeds are peak values\n\nin comparison with internal hard disk speeds:\nIDE ATA133: 133MB/s\nSATA 1.5Gb/s: 180MB/s\nSATA 3.0Gb/s: 360MB/s .... both SATA disk types hardly reach that maximum speed\n\nas the comparison shows, an external disk never reach the speed of an internal one.\nand as an advice to you, it's not necessarily needed to have a Firewire card and an external HD case with 1394b interface (except you're a total computer freak). you can easily go for an external USB 2.0 disk case with an IDE or SATA disk. it's cheaper and it will do the job for storing music files and other stuff by far and it has the advantage that you can use it on nearly every computer, because USB 2.0 is a common interface.
147845
For the internet, speeds of 45 MB/s are considered fast. The company I work for has an OC3 link which is 155 MB/s
473508
The revolutions per minute that an optical disk drive spins is dependent on which one you buy. They are given in the form of (number)x. X is 150 MegaBytes/second. So the speed is the number times 150 MB/sec. RPM specifications must be acquired from the manufacturers.
231641
There's nothing wrong with your drive or computer. The discrepancy you're seeing occurs because Windows (and nearly all other operating systems too) calculates hard drive sizes in a different manner than do drive manufacturers. One uses binary and the other uses decimal. Rather than writing it all out, read this below:\n\n""Marketing" capacity versus true capacity\n\nHard drive manufacturers often use the metric definition of the prefixes "giga" and "mega", whilst nearly all operating system utilities report capacities using binary definitions for the prefixes. This is largely for historical reasons, since when storage capacities started to exceed thousands of bytes, there were no standard binary prefixes. The IEC only standardized binary prefixes in 1999, so 210 (1024) bytes was called a kilobyte because 1024 is "close enough" to the metric prefix kilo, which is defined as 103 or 1000. This trend became habit and continued to be applied to the prefixes "mega," "giga," and even "tera." Obviously the discrepancy becomes much more noticeable in reported capacities in the multiple gigabyte range, and users will often notice that the volume capacity reported by their OS is significantly less than that advertised by the hard drive manufacturer. For example, a drive advertised as 200 GB can be expected to store close to 200 x 109, or 200 billion, bytes. This uses the proper SI definition of "giga," 109 and can be considered as an approximation of a gibibyte. Since utilities provided by the operating system probably define a gigabyte as 230, or 1073741824, bytes, the reported capacity of the drive will be closer to 186.26 GB (actually, GiB), a difference of well over 7 percent. For this very reason, many utilities that report capacity have begun to use the aforementioned IEC standard binary prefixes (e.g. KiB, MiB, GiB) since their definitions are unambiguous.\n\nAnother side point is that many people mistakenly attribute the discrepancy in reported and advertised capacities to reserved space used for file system and partition accounting information. However, for large (several GiB) filesystems, this data rarely occupies more than several MiB, and therefore cannot possibly account for the apparent "loss" of tens of GBs."\n\n\nIf you want to read the whole article, see here:\n\nhttp://en.wikipedia.org/wiki/Hard_drives
953080
Using a pen/thumb drive is the most efficient way. They some in different capacities. You should get the one with the largest capacity if you plan to move huge files.\n\nNote: This suggestion is for data files only. You can never move O/S or system files or even programs.
479047
The faster the disk turns the less time waiting for disk to turn to where data is waiting. With an external drive it may not be as important as the throughput could be limited by the interface used.
111429
it's depend if you're downloading from the web is not you CPU is you internet connection and if it is for a camara or flash memory or whatever is not your CPU either is the USB port, the device or the cable itself, 'cause every port has and specefic speed and can't traspast and if you have a CPU at 3.8 ghz doesn't matter at all.