From Longman Dictionary of Contemporary EnglishROMROM /rɒm $ rɑːm/ noun [uncountable] technical TD (read-only memory) the part of a computer where permanent instructions and information are stored → RAM
Examples from the Corpus
ROM• Other options include a Novell NetWare boot ROM for diskless workstations.• NuTek reportedly developed its own Mac-compatible ROM in a clean room using public documents.• One group of pirates has made a small add-on circuit board which makes it easier to copy ROM cartridges.• PTR-1 returns the number of file handles available for use and the ROM release number.• However the ROM used a slightly different principle.From Longman Business DictionaryROMROM /rɒmrɑːm/ noun [uncountable]COMPUTING read only memory; the part of a computer’s memory where permanent instructions and information are stored 