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虽然CD-ROM从诞生至今只有短短10几年的历史,但它已在信息领域扮演着日益重要的角色,并深入到人们日常生活的各个方面。CD-ROM以其记录密度高、存储容量大、寿命长、工作稳定可靠、信噪比高、抗干扰能力强、价格低、携带方便、易于制作等优点,成为当今存放多媒体长效信息的理想介质,应用范围也在不断扩大。CD-ROM本意是由小型光盘做成的只读存储器,这里说的小型光盘(CD)是有特定含义的,所以它本身也是一种商标符号。CD是指注塑成型的镀铝圆盘,直径为12cm,用μm(微米)级的凹槽波纹表示数据,盘上的数据由激光头(optical pickup)读出。根据小型光盘发展的不同历史时期及不同应用,制定了小型光盘各种不同的生产技术标准,这些标准以它发表时用的文件来划分,
Although CD-ROM has a history of just over 10 years from its inception, it has played an increasingly important role in the field of information and has gone deep into all aspects of people’s daily life. CD-ROM is ideal for storing long-term multimedia information with its advantages of high recording density, large storage capacity, long service life, stable and reliable operation, high signal to noise ratio, strong anti-interference ability, low price, convenient portability and easy manufacture. Medium, the scope of application is also expanding. CD-ROM is intended to be made of compact disc read-only memory, here that compact disc (CD) has a specific meaning, so it is itself a trademark. CD refers to an injection-molded, aluminized disk having a diameter of 12 cm and data expressed in grooves on the μm (micrometer) scale. The data on the disk is read by an optical pickup. According to the different historical periods and different applications of the development of mini-CDs, various different production technology standards for mini-CDs have been formulated. These standards are divided according to the documents they are published in,