127
USB is a kind of communication port. Many portable devices have this port and can be connected this way to other devices.
usb port driver, serial adapter,
in the usb port of your laptop/usb port of your cpu
On a typical setup, only one device can be connected to the ports. However, if you have a special USB port, or a device that will split a USB port, you can connect 2 or more devices.
No, older USB devices do not run faster when connected to a new USB port. The speed of the device is determined by the device itself, not the port it is connected to.
no
USB port (Unassigned Serial Port)
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..
No, The port on an ipad is a device port, not a host port. You would have to get a USB on the go adapter for iPad to connect external devices.
Yes, a USB port can supply a small amount of power for attached devices.
A USB port
In theory a single hub of USB can support 127 devices. In practice, this will not actually occur. Most computers do not have enough power to drive that many devices. A reasonable number would be about 20.