from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Computer Science Memory hardware that allows fast access to permanently stored data but prevents addition to or modification of the data.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- read-only memory.
- A software image of read-only memory (as of a game cartridge) used in emulation.
- Range of Motion.
- Return on Margin.
- Rough order of magnitude. An informal cost or price estimate provided for planning and budgeting purposes only, typically expected to be only 75% accurate.
r(ead-)o(nly) m(emory).(American Heritage® Dictionary of the English Language, Fourth Edition)