Speed.

Speed

With a usb connected enter your system BIOS by pressing the Delete key during boot up through one of the menus select primary boot as usb. Where the selection is located in the menu will vary depending on your system.

A USB broadband modem can be used for quite a number of various purposes. Its primary purpose and most common use is modulating an analog carrier signal to encode digital information.

The primary difference is that a USB interface type printer requires the computer to have a USB port (as all modern computers do) whereas a parallel interface type printer requires the computer to have a parallel (LPT) port (which many modern computers do not have.)

There are USB-to-parallel converters however which plug into USB and allow the use of parallel printers.

Additionally, many legacy applications only have support for parallel printers, in these cases, in order to use a USB printer it may be necessary to create a virtual parallel port and map the USB printer to it.