write once read many

read write memory

Read-write

USB flash disk read and write

magneto optical disk

Optical Disk

optical disk drive

Optical disk memory system

Recordable Optical Disk

Many-to-Many

Backup and restore of floopy disk and hard disk

ability to write

absolute diskette write

address write wire

address-write

channel write command

coated write paperboard

direct read after write

flagged write back

read-after-write