The Wonderful World of USB Devices

USB stands for Universal Serial Bus and was firstapperance, taking the USB conncetivity revolution even
rolled out on new PC's back in November 1995. Itfurther. Currently emerging technologies such as "USB
wasn't until 1998 and the release of the USB 1.1On The Go" is set to be released soon on mobile
standard that USB really started to take off. Since thisdevices, allowing a USB device to connect to another
time USB has grown to be one of the most popularUSB device without the need for a computer to act
ways of connecting devices to your computer.as a go between. Next-generation consumer
To truly appreciate how great USB is - you only haveelectronic devices will also be supporting "Wireless
to look back at what was around before the greatUSB" another exciting technology allowing USB
connector. People using computers pre 1995 weredevices to connect wirelessly.
connecting their printers, scanners and gameCurrently however, there is a common problem that
controllers via Serial, Parallel and SCSI ports which arepeople face when using todays USB storage devices,
comparatively very slow and required at least asuch as USB Pen Drives, USB Hard Drives and USB
degree in computer science to install!Memory Card Readers. Many people believe it is
People new to computers at that time had a seriousperfectly safe to just pull out a USB device from their
learning curve to get peripherals connected andcomputer once they have finished with the USB
working, and to make things worse the more devicesdevice. This can however, potentially cause corruption
you had the more complex the install processand data loss on a USB storage device.
became.With USB, these days it's so much easier, youIt's always good practice to "Safely Remove
can simply plug in your "USB mini desktop aquarium"Hardware" before removing a USB Device. In
(yes it does actually exist!) and it will practically installWindows XP or Windows 2000, it's simply a case of
itself without the worry of your Printer, Scanner,double clicking on the "Remove Hardware" icon (circled
Mouse or USB Pen Drive failing as a result of thebelow), in the system tray and then clicking on the stop
install.button. Your computer should then tell you that it's
The simplicity of installation for modern USB devices,"Now safe to remove the USB Hardware". If a
coupled with it's superior data speed performance hasmessage is returned from your computer saying "USB
allowed a whole range of USB peripherals andDevice cannot be stopped now", then you may need
gadgets to venture on to the market. From the fairlyto close any files being accessed by your computer
useless USB disco ball to USB Hard Drives, USB Penfrom the USB Device.
Drives, Graphics Tablets, USB telephones (comingBy "Safely Removing Hardware" before unplugging
soon to Mousehouse) - the list goes on and on.USB devices, you are effectively asking the computer
Besides the ability for manufacturers to easily supportif it is safe to remove the USB device first. This
a variety of USB devices, a large part of the versatilityprocess is very important as once you "Safely
of USB is down to the fact that a USB socket is ableRemove Hardware" the computer is able to prepare
to provide a small amount of power to whatever isthe USB device to be removed. The computer will
plugged into it, so devices that require a small amountcheck that any files being accessed by the USB
of power can be entirely powered by the USB socketdevice are saved and not in use, then power to the
alone, using a standard USB cable. USB 2.0 finalised inUSB device is turned off. Only then is the USB Device
2001, transfers data at 480Mbps, (megabits persafe to be removed from your computer. If this
second) about 40X times faster than USB1.1, whichprocedure is not followed when removing USB
operates at just 12Mbps. USB 2.0 is backwardsStorage Devices, not only are you at risk of loosing
compatible with USB 1.1 and vice versa but will onlydata stored on the USB Device, but also damaging the
operate at USB 1.1 speed.device itself and this damage would not be covered
More USB technologies are soon to make anunder the warranty of the device.