6.The software and hardware design of the PP-1 magnetic card read write device are introduced in this paper,which adopted the dual-frequency coherent phase means to coding and adopted BCD code appended check code means to compose character.
7.Check with your hardware vendor for any BIOS updates.Disable BIOS memory options such as caching or shadowing .If you need to use safe mode to remove or disable components,restart your computer,press F8 to select advanced startup options,and then select safe mode.
