a compact disk that is used with a computer (rather than with an audio system); a large amount of digital information can be stored and accessed but it cannot be altered by the user
a drive that is connected to a computer and on which a CD-ROM can be `played'
(computer science) memory whose contents can be accessed and read but cannot be changed
a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin