| Subject | English | Sinhala |
| comp., MS | compact disc read-only memory | සංගත තැටි ප්රවේශ මාත්ර මතකය (A form of storage characterized by high capacity (roughly 650 MB) and the use of laser optics instead of magnetic means for reading data) |
| comp., MS | read-only memory | ප්රවේශ මාත්ර මතකය (A semiconductor circuit that contains information that cannot be modified) |