"Older digital cameras practically require a memory card reader, because the only other way to move data from camera to computer is down a serial cable. The fastest speed most serial ports can handle is 115200 bits per second, which works out at little more than 10 kilobytes per second. Which makes a floppy disk look like a speed king."
FULL STORY @ DANSDATA (http://www.dansdata.com/readers.htm)