วันพฤหัสบดีที่ 8 ธันวาคม พ.ศ. 2554

Usb External Hard Drives - Technologies and Options

When speaking of computer technology, there is one aspect that is roughly impossible to overlook. It has become so lowly that it has been suitable as the norm. This is Usb technology, a method designed to allow peripheral devices to connect seamlessly with desktop computers and laptops. In fact, this technology has become so allembracing that many population do not remember a time before Usb was available. However, in order to understand the changes in this relationship technology, as well as new developments on the horizon, it is foremost to delve into the history of computer connectivity.

Ancient History

Tvs Printer

Once upon a time, peripheral devices (mice, keyboards, storage devices, printers, etc.) all linked to a computer in separate ways. Keyboards linked with a round connector, as did mice. printers used an Lpt (parallel) connector. Each of these had to have a relationship spot on the back of a computer. In addition, each had to have its own card seated in a slot on the motherboard.

One of the more immediate problems created by these separate types of connectors was the fact that there was positively no suitable means of connecting separate peripherals. This meant pain and frustration for computer users, as well as strangeness in looking the right peripherals for their machines.

Another problem here was a lack of replacement speed for data from a peripheral to the host computer. Consider digital cameras for instance. As these devices became more commonplace, the need to replacement image data from the camera to the computer in a timely manner became more acute. The same can be said for modern printers and other peripheral devices.

The starting of A New Era

In 1996, things began to change. This marked the debut of Usb 1.0. While the primary Usb technology wasn't particularly fast, it did offer some benefits. It allowed numerous types of peripherals to connect to a computer via the same type of connection. This substituted a host of serial and parallel ports on the computer, helping to lead to a more streamlined, functional device.

Of course, Usb 1.0 didn't last very long. In fact, in 1998, Usb 1.1 appeared, which offered enhanced data replacement speeds. Over time, this relationship type became the suitable for a vast variety of peripheral devices. Consider for a occasion the estimate of devices that you connect to your Pc or laptop with a Usb cord. You might connect your cell phone, your mouse, your keyboard, an external hard drive or a monitor. roughly whatever can be linked via this method in the modern world.

However, one of the most foremost developments that Usb enabled was that of modern mass storage. You are not doubt customary with thumb drives, but external hard drives have made use of this technology for a long time, as well. This is an foremost evolution in the technology world, as it has provided consumers colse to the world with a simple, easy means of storing their data securely, in a portable device.

The coming of Usb 2.0

April 2000 marked another milestone in Usb technology. This was the release of Usb 2.0. Compared to Usb 1.0, the new generation offered numerous advantages to consumers. However, one of the most foremost was an growth in data replacement speeds.

Older 1.0 applications were microscopic to 1.5 Mb/s. However, Usb 2.0 was capable of delivering (theoretically) speeds of up to 480 Mb/s. Of course, this was not exactly accurate, as much of the speed was lost in overhead communications in the middle of the Usb controller and the host computer. However, there was a critical estimate of speed gained with the new technology.

As Usb 2.0 matured, more and more devices began to make use of the technology. While Usb 1.0 laid the groundwork for this evolution, the new generation saw it come to fruition. In fact, during the reign of the second generation, it seemed like roughly any peripheral a consumer could need was ready with this relationship type. This was most clear in the estimate of external hard drives that became ready with it. In fact, 2.0 remains the business suitable to this day, though things are starting to change once again.

The time to come of Usb Technology

In 2008, a new Usb technology was developed. Usb 3.0 was announced by the industry. However, it was not until early 2010 that the first consumer devices were developed that made use of this new technology. What does this mean for consumers? What differences exist in the middle of the two types of Usb technology?

First, because Usb 3.0 is still quite new, there are numerous computers on the shop that do not have the capabilities to use it. For instance, a laptop man-made in late 2009 would still have Usb 2.0 connectivity. However, most manufacturers began offering Usb 3.0 connections on their devices built during the late first quarter of 2010. Of course, this technology is backward compatible with older computers, but in order to realize all the benefits offered by this new development, the host computer, the cable and the peripheral expedient must all be Usb 3.0 compliant. What benefits can be found here?

The first advantage is a dramatic growth in data replacement speed. Where Usb 2.0 offered 480 Mb/s, the new generation offers a raw throughput rate of 4 Gb/s. This is an thinkable, growth in replacement speed, and was designed to help with high-definition multimedia files, as well as better backup speeds for external hard drives and other mass media storage devices.

Another advantage found with Usb 3.0 is the fact that it allows two-way communication. In older applications, all communication had to be initiated by the host computer. However, with 3.0 technology, the peripheral can activate communication with the host computer.

An foremost note about the most recent version of Usb technology is the fact that it challenges eSata relationship types. For some users and manufacturers, eSata has become the best option, but new Usb technology promises to challenge this with comparable data replacement speeds, as well as wider applicability. In short, more devices can use Usb 3.0 than eSata connections, together with external hard drives, Tvs, Blu-Ray players and numerous other options.

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