The CD-ROM
The CD-ROM (Read Only Memory) came as an extension of the CD in 1984. In principle, the media and the drives are the same.
The difference is in the data storage organization. In a CD-ROM, the data are stored in sectors, which can be read independently -
like from a hard disk.
The CD-ROM has become an important media in the PC world. It can hold 650 MB of data, and it is very inexpensive to produce.
Today, there are three types of CD drives and DVD drives are on their way:
Let us start by look at the CD-ROM construction. To facilitate understanding, it will be easiest to compare it with other disk types,
especially the hard disk. The CD-ROM is a plastic disk of 4.6" diameter.
The CD-ROM (Read Only Memory) came as an extension of the CD in 1984. In principle, the media and the drives are the same.
The difference is in the data storage organization. In a CD-ROM, the data are stored in sectors, which can be read independently -
like from a hard disk.
The CD-ROM has become an important media in the PC world. It can hold 650 MB of data, and it is very inexpensive to produce.
Today, there are three types of CD drives and DVD drives are on their way:
especially the hard disk. The CD-ROM is a plastic disk of 4.6" diameter.
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