That depends on what kind of USB device. Considering the categorization of the question, we may assume you are primarily interested in USB flash drives - although there are also USB mice, keyboards, printers, external hard drives, cameras... and the list goes on.
Most computer stores sell flash drives, as do most business supply stores. USB flash drives have become so ubiquitous however that you can even find them in some drug stores and grocery stores. There are also many, many internet businesses that sell USB devices.
There are many things that one could do with a USB DAQ device. The biggest thing that one could do with a USB DAQ device would be for data acquisition.
The USB root device could be disabled in the Computer Hardware Device.
You can buy what is called an external USB Hub. A USB Hub is a device that allows many USB devices to be connected to a single USB port on a host computer or another hub You can buy them just about anywhere...Best Buy, WalMart, RadioShack..etc..
A usb cable is not a device. A USB drive would be a Storage Device and still not be an Input or Output device. A USB keyboard would be an input device and a USB printer would be an output device.
You can buy a USB to serial converter (if they make them) of you can also ghetto one.
The USB 2.0 and 3.0 device will work. USB 3.0 is backwards compatible with USB 2.0.
They work with any computer that has a USB port, to a USB device.
A usb cable is not a device. A USB drive would be a Storage Device and still not be an Input or Output device. A USB keyboard would be an input device and a USB printer would be an output device.
You could buy a USB battery pack from many reputable retailers. This includes Amazon, Best Buy, TigerDirect, Buy, and Newegg. All of these retailers offer a USB Battery pack.
Check that the usb device is functional in the Device Manager, Some USB devices don't appear in Device Manager use the utility program that came bundled with the device to check for errors. No. Plug the device into another USB port. If it does not work after you have plugged it into all USB ports on the computer then you know that your device is not working.
First try moving the device to another USB port!!! Check that the usb device is functional in the Device Manager. some USB devices don't appear in Device Manager use the utility program that came bundled with the device to check for errors.
If your Panasonic Viera TV is not reading a USB device, it could be due to several reasons. The USB drive may not be formatted in a compatible file system, such as FAT32 or exFAT, which the TV supports. Additionally, the files on the USB may not be in a supported format, or the USB port itself might be malfunctioning. Try using a different USB device or port, and ensure that the files are compatible with your TV.