Epson 486SX - Manual (Page 223)

Video card
See Display adapter card.
Write
To store data on a disk.
Write-protect
To protect the data on a diskette from being changed by placing
a write-protect tab over the notch on the side of a
diskette or by setting the write-protect switch on a
diskette. When a diskette is write-protected, you cannot erase,
change, or record over its contents.
Glossary 19