Sony VAIO PCV-MXS10 User Manual page 19

while the write-protect tab in the LOCK position. When you slide the tab to the
un-LOCK position, you can write to or modify your Memory Stick media's
contents.
Locking the Memory Stick Media
To unlock To lock
LOCK
LOCK LOCK
To Use PCMCIA Card Slot
Your computer has a card bus PCMCIA card slot that supports Type I or Type II
PC (PCMCIA) cards. You do not need to shut down your computer when
inserting a PC card. For more information, see the instructions supplied with your
PC card.
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