Compact Disc Read-Only Memory It contains data (as it is used to stored data on different small blocks in CD). Computers can read CD-ROMs, but cannot write to CD-ROMs, which are not writable or erasable.
compact disc read only memory; iss CD me 700 mb ka hota hai agar iss CD me 100 mb ka data daal diya jaay to uske baad dobara aap nhi daal skte aur na hi delete ho payega aapka 600 mb barbad ho jayega 🙋