cd-rom: meaning, definition, pronunciation and examples
Low (declining)Technical, formal
Quick answer
What does “cd-rom” mean?
A compact disc that contains data which can be read by a computer but not written to or erased.
Audio
Pronunciation
Definition
Meaning and Definition
A compact disc that contains data which can be read by a computer but not written to or erased.
A physical optical storage medium for distributing software, multimedia, reference works, or archival data; historically a primary method for software installation and data distribution before widespread broadband internet.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling may sometimes appear as 'CDROM' (without hyphens) in American technical documentation.
Connotations
Neutral technical term in both varieties. May connote outdated technology or legacy systems.
Frequency
Equally low frequency in both varieties, largely supplanted by terms like 'download', 'USB drive', or 'cloud'.
Grammar
How to Use “cd-rom” in a Sentence
The software is on a CD-ROM.You need to insert the CD-ROM into the drive.Vocabulary
Collocations
Examples
Examples of “cd-rom” in a Sentence
adjective
British English
- The CD-ROM drive is broken.
- We need a CD-ROM version of the manual.
American English
- The software is CD-ROM based.
- Check the CD-ROM documentation.
Usage
Meaning in Context
Business
Rare, used historically for software distribution or archived data.
Academic
Occasional reference in computer science or historical contexts regarding data storage.
Everyday
Very rare; most users now refer to 'downloading' software or using a 'USB stick'.
Technical
Precise term for the specific ISO 9660 data format on a compact disc.
Vocabulary
Synonyms of “cd-rom”
Watch out
Common Mistakes When Using “cd-rom”
- Using 'CD-ROM' to refer to the drive unit.
- Pronouncing it as a single word /ˈsiːdrɒm/ instead of letter-by-letter.
- Writing it inconsistently (CDROM, cd-rom, Cd-Rom).
FAQ
Frequently Asked Questions
They use the same physical medium, but a CD-ROM contains computer data formatted to the ISO 9660 standard, while a music CD uses the Red Book audio standard.
No. A standard CD-ROM is 'read-only'. To save files, you need a recordable CD (CD-R) or a rewritable CD (CD-RW).
They have low storage capacity (typically 700 MB) compared to USB drives and cloud storage, are slow, and physical distribution is less convenient than digital downloads and streaming.
A DVD-ROM uses a different technology to store much more data (typically 4.7 GB or more) on a disc of the same physical size.
A compact disc that contains data which can be read by a computer but not written to or erased.
Cd-rom is usually technical, formal in register.
Cd-rom: in British English it is pronounced /ˌsiː diː ˈrɒm/, and in American English it is pronounced /ˌsi ˌdi ˈrɑm/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “It's not rocket science, it's on the CD-ROM.”
Learning
Memory Aids
Mnemonic
CD-ROM: Compact Disc - Read Only Memory. Think of a music CD, but for computer data that you can only read, not record over.
Conceptual Metaphor
A physical library book (you can read the contents but cannot write in it).
Practice
Quiz
What does the 'ROM' in CD-ROM stand for?