A disc drive includes a motor that drives a disc, a slider that accesses
the disc, a carriage that moves the slider, a housing that houses the
disc, motor, slider, and carriage, and includes a rotating part that has
an engagement part with the carriage at one end, and a first magnetic
member at another end, and a printed board being provided on and
approximately parallel to a bottom surface of the housing. The printed
board includes a second magnetic member that extends from the inside of
the housing to the printed board, and the printed board further includes
a coil that forms an electromagnet with the second magnetic member, and
is arranged in accordance with a shape of the bottom surface of the
housing.