数字计算机的速度始终受存储器的限制。近来,10兆赫逻辑电路相当普遍,但一兆赫的磁心存贮矩阵仍难于制成。因此,新设计的计算机都倾向于在主磁心存储器之外,装一个用二极管-电容、磁膜或多路偏置铁氧体磁心制成的小容量快速存储器。日本国家电气实验室正在研制的快速计算机 ETLMK-6也将采用一个这样的小型快速存储器,用来存储一段程序、中间数据和变址 The speed of digital computers is always memory limited. Recently, 10 MHz logic circuits are quite common, but a one-MHz core memory matrix is ​​still difficult to make. Therefore, the newly designed computers all tend to have a small capacity fast memory made of a diode-capacitor, a magnetic film or a multi-biased ferrite core outside the main core memory. Japan National Electrical Laboratory is developing a fast computer ETLMK-6 will also use one such small fast memory, used to store a program, intermediate data and index