Flexible recording system, flexible disk drive and recording disk

摘要

A small-sized and thin flexible recording system including a flexible disk drive and a recording disk is provided. The recording disk has a disk-shaped recording medium and a recording medium cartridge rotatably receiving therein the recording medium. The flexible disk drive includes a magnetic head for recording information into the recording medium or reproducing information recorded in the recording medium, a carriage mechanism for moving the magnetic head, a recording medium drive motor for rotating the recording medium, a frame having an insertion opening through which the recording disk is inserted, a recording medium mounting portion formed adjacent the insertion opening in a direction in which the recording disk is inserted for mounting thereon the recording disk, and a recording-disk ejection mechanism for ejecting the recording disk from the frame. The recording disk has a write-protect instructing member which comprises a hole formed in an end face of the recording medium cartridge disposed at one side thereof from which the recording disk is inserted into the frame, and an element for opening and closing the hole. The flexible disk drive has a write-protect detector provided on the disk mounting portion at its one end from which the recording disk is inserted into the flexible disk drive for detecting permission or inhibition of writing into the recording medium based on the open or closed state of the hole.