Most new laptops as of 2010 have an SD memory card reader built into the machine, which is used by inserting the SD card into the card reader slot. But many laptops made before 2005 do not include a built-in device to read the SD cards commonly used with digital cameras and mobile phones. This functionality can be added to any laptop by using a USB multi-card reader, which plugs into a USB port on the laptop and can read a variety of memory card formats. The multi-card reader is shown as an additional drive on the computer. Writer Bio
