It was a TRS-80 model 1 with 4kb of memory and cassette tape mass storage, which I later upgraded to an Exatron stringy floppy.
那是一台TRS - 80机型1，它具有4kb内存和大容量存储磁带，之后我将其升级为Exatron软盘。
The price of this model of cassette-player is 2500 Belgian francs at today's rate of exchange.
这个型号的录音机，按今天汇率，每台2500比利时法郎。
In this paper, the concept of transfer function in control engineering is applied to produce a mathematical model for the play system of cassette recorder mechanism—block diagram of transfer function.
本文根据自控原理中传递函数的概念，建立盒式录音机机芯走带系统的数学模型——系统传递函数框图。
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