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Wiktionary
read-only

a. unalterable, capable of being read but not written. Especially common in computer terms such as read-only memory and read-only access to files or directories (in in file system permissions or programs).

Wikipedia
Read-only

In computing, read-only can mean:

  • Read-only memory (ROM), a type of storage media
  • Read-only access to files or directories in file system permissions

Usage examples of "read-only".

In the case of a Web server, you want to give read-only access to remote users in any user’s directories of html files.

E-squared PROMs, or electrically erasable programmable read-only memory chips.

So the data that it uses is placed in a Programmable Read-Only Memory, a PROM.

Rather than programmable read-only memory, or PROM, that couldn't be erased, the EPROM allowed vendors to change code without having to manufacture new PROMs.

In the case of a Web server, you want to give read-only access to remote users in any user’.

And once I'm in, I'll have read-only access to all of the city's public facilities: all the information, all the entertainment, all the shared environments.

So by making it a read-only file, and hiding it, and calling it a system file as if it were something so darn important it would destroy your computer if you were to mess with it, Microsoft is trying to trick you into leaving it alone.

This means that all members of the group Everyone can delete any read-only file in the directory.

They had isolated the datastores that had to do with Klara and the terrible crush of guilt that had cost me years of psychoanalysis to ease, and they had encapsulated them in a read-only file and given it back to me, with a seal on it so I wouldn&rsquo.

They had isolated the datastores that had to do with Klara and the terrible crush of guilt that had cost me years of psychoanalysis to ease, and they had encapsulated them in a read-only file and given it back to me, with a seal on it so I wouldn't open it until I was ready.

It was all ROM, read-only memory, for the compinsets, the programs.

Mostly I had to ask the piloting computer to call up from its read-only memory its generalized program for landing from an orbit circum Luna.