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Different data rate speed (for rs232 is lower), usb is more flexible and takes less energy. Different instructions and commands. If you are a programmer then it's easier for to work with usb then with rs232.
Yes. Formating it Erases ALL the data of the usb.
The PlayStation 3 keeps telling you that there is no save data on the USB because the USB is empty.
Yes it actually has two USB ports that are available on either side of the bridge.
Different devices communicate with computers at different speeds - and in different formats. Most USB devices send a continuous stream of bits - whereas other devices may send data in 'packets'. The different standards (USB, HDMI etc) have the necessary circuitry to decode the relevant data stream into something the computer can understand.
Floppy Disk, CD, and USB Drive
you can use a usb and place it in the the input for usb devices , then save it on to the computers data!!
it can store data
Yes but the usb device has to have space for data.
A USB lock works by physically blocking USB ports from unauthorised access, thus preventing unauthorised data transfer, which reduces the risk of data leakage, data theft and computer viruses.
You don't the PS2 can not connect from USB data card
It is USB 2.0, the standard external data and power connection.