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一、磁存储元件在计算机中的地位自1946年第一台数字电子计算机ENIAC问世以来至今已有卅四年,这些年来计算机的发展迅猛异常。从性能上看,计算速度已从每秒几十次发展到新近宣布的Cy-ber 205(予定1981年1月交机)每秒运行8亿次提高约千万倍;从使用上看,操作越来越简单,就连家庭妇女儿童都可以学会;从数量上看,从六十年代初期的几千台,七十年代初期的十万台左右,发展到现在已达近百万台,(这还不包括年产约千万台的微型计算机)。这已经形成了一个世界范围的庞大的工业体系。在计算机的发展过程中,元器件起了决定性的作用。磁性元件也不例外。我们经常用元器件的更新来划分计算机时代,如表1所示。初期以电子管为主要器件的是第一代计
First, the magnetic storage element in the computer position since 1946 the first digital electronic computer ENIAC has been in existence for four years, the rapid development of computers over the years. From the performance point of view, the calculation speed has been developed from dozens of times per second to the newly announced Cy-ber 205 (scheduled to be delivered in January 1981), which has been increased by about 800 million times per second to improve by about 10 million times. From the point of view of operation, From the perspective of quantity, from the number of thousands in the early 1960s to the 100,000 sets in the early 1970s, it has grown to nearly 1 million now ( This does not include microcomputers that generate about 10 million units annually.) This has formed a huge industrial system worldwide. In the computer development process, the components played a decisive role. Magnetic components are no exception. We often use the update of components to divide the computer age, as shown in Table 1. The first tube to the main device is the first generation meter