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信息存储 ·1993年8月,IBM公司宣布,利用巨磁阻现象,可大幅度提高硬盘容量。 ·IBM公司制成多层光盘,可存几部电影、12小时音乐或100万页信息。10层光盘容量提高10倍,达6.5吉位,提取信息仅需10秒。 ·日本先锋公司研制出可在室温下使用的蓝色激光CD机。采用这种蓝色激光,可将CD唱盘和光盘存储器的存储量比红色激光提高10倍,达到10至20吉位(5英寸盘)。 ·9家日本公司、美国休斯公司的一家子公司和德国瓦克化学公司将从1995年3月起合作开发直径达40厘米的硅片。日本硅片产量目前占全世界的70％。 ·东芝公司制出电极长度仅0.04μm的晶体管。目前64
Information Storage · In August 1993, IBM announced that the use of giant magnetoresistance could significantly increase the capacity of hard disks. IBM made multi-layer discs that can hold several movies, 12 hours of music, or 1 million pages of information. The capacity of the 10-layer disc is increased by 10 times to 6.5 Gigabits, and it takes only 10 seconds to extract information. Japanese pioneer company developed a blue laser CD player that can be used at room temperature. With this blue laser, the storage capacity of a CD player and an optical disk storage can be increased by a factor of 10 compared with that of a red laser, to 10 to 20 Gigabits (a 5-inch disk). • 9 Japanese companies, a subsidiary of Hughes, and Wacker Chemie AG will jointly develop silicon wafers up to 40 cm in diameter in March 1995. Japanese wafer production currently accounts for 70% of the world’s total. · Toshiba Corporation made a transistor with an electrode length of only 0.04 μm. Current 64