Write once may refer to:
*
Write once, run anywhere
Write once, run anywhere (WORA), or sometimes Write once, run everywhere (WORE), was a 1995 slogan created by Sun Microsystems to illustrate the cross-platform benefits of the Java language. Ideally, this meant that a Java program could be develop ...
, a slogan for the cross-platform benefits of Java
*
Write once, compile anywhere
Write once, compile anywhere (WOCA) is a philosophy taken by a compiler and its associated software libraries or by a software library/software framework which refers to a capability of writing a computer program that can be compiled on all platf ...
, a slogan for the cross-platform benefits of C
*
Write-once (cache coherency)
In cache coherency protocol literature, Write-Once was the first MESI protocol defined. It has the optimization of executing write-through on the first write and a write-back on all subsequent writes, reducing the overall bus traffic in consecuti ...
, a write-invalidate protocol in computer memory design
*
Write once read many
Write once read many (WORM) describes a data storage device in which information, once written, cannot be modified. This write protection affords the assurance that the data cannot be tampered with once it is written to the device, excluding the p ...
, computer storage that can be written to once, but read from multiple times
{{disambig