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美IBM公司公布了一种新的200兆字节盒式磁带装置——IBM3408。该记录密度为原来IBM3420的6倍,而功耗和所占空间减至原来的40%左右。磁带盒的尺寸是100×125×25立方毫米,磁带卷轴(直径27厘米)约为原来的四分之一。磁带宽0.5英寸,记录介质用CrO_2;用薄膜头作磁头。征磁带走行中,磁头靠空气流浮起进行读/写。位密度约19000BPl;
The United States IBM announced a new 200-megabyte cassette tape device - IBM3408. The recording density of 6 times the original IBM3420, while the power consumption and the space reduced to 40% of the original. The size of the tape cassette is 100 x 125 x 25 mm and the tape reel (27 cm in diameter) is about one quarter of the original size. Tape width 0.5 inches, recording media CrO_2; with film head for the head. Leading the tape running, the head floating by air to read / write. Bit density of about 19000BPl;