CD-ROM

A CD-ROM /ˌsˌdˈrɒm/ is a pre-pressed optical compact disc which contains data.

CD-ROM
Media teepOptical disc
Capacity194 MiB (8 cm), 650–900 MiB (12 cm)
Read mechanism150 KiB/s (1×), 10,800 KiB/s (72×)
Write mechanism150 KiB/s (1×), 8,400 KiB/s (56×)
StaundartISO/IEC 10149[1]
UisageData storage

References