CD-ROM stands for Compact Disc Read-Only Memory. It is a type of optical disc that can store large amounts of data, including text, images, audio, and video. CD-ROMs were introduced in the 1980s and quickly became a popular means of distributing software, games, and multimedia content.
A CD-ROM consists of a flat, circular disc made of polycarbonate plastic, with a diameter of 120mm and a thickness of 1.2mm. The disc is coated with a layer of aluminum, which is used to reflect laser light. The data is stored on the disc in the form of pits and lands, which are read by a laser beam.
CD-ROMs are read-only, which means that data can be read from them, but not written to them. To write data to a disc, a different type of optical disc, such as a CD-R or CD-RW, is required.
CD-ROMs have largely been superseded by newer technologies, such as USB flash drives and online distribution platforms. However, they remain a useful means of distributing large amounts of data, particularly for archival and historical purposes
MCQ: CD-ROM stands for
Correct Answer:A. Compactable Read Only Memory
Explanation:
CD-ROM stands for Compact Disc Read-Only Memory. It is a type of optical disc that can store large amounts of data, including text, images, audio, and video. CD-ROMs were introduced in the 1980s and quickly became a popular means of distributing software, games, and multimedia content.
A CD-ROM consists of a flat, circular disc made of polycarbonate plastic, with a diameter of 120mm and a thickness of 1.2mm. The disc is coated with a layer of aluminum, which is used to reflect laser light. The data is stored on the disc in the form of pits and lands, which are read by a laser beam.
CD-ROMs are read-only, which means that data can be read from them, but not written to them. To write data to a disc, a different type of optical disc, such as a CD-R or CD-RW, is required.
CD-ROMs have largely been superseded by newer technologies, such as USB flash drives and online distribution platforms. However, they remain a useful means of distributing large amounts of data, particularly for archival and historical purposes