Texas Instruments Extensa 570x Series Maintenance Manual page 35

Insert the floppy into the floppy drive slot with the label side up and the
metal-shutter end first. Gently push the floppy into the floppy drive slot
until the floppy clicks into place.
To remove a floppy diskette, press the eject button until the floppy pops
out.
Never force open the access shutter on a floppy.
Always remove a floppy from the floppy drive before turning off the
computer.
Never transport the computer with a floppy in the floppy drive. Doing so
can damage the drive head.
If a floppy appears to be damaged, try to make a copy of it, and
immediately discard it.
Keep all floppies when not in use in a disk storage box to protect them
from damage or loss.
Operating Instructions 3-3