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本文介绍数字计算机中采用数字模拟结合技术进行运算操作的一种新方法。这种运算是用数字/模拟转换器之间的并—串行相互转接来完成的。这种转接由存贮程序控制,并由选择发送模拟信号以执行各种运算操作的“多通道操作器”(multiplexer)发生作用。运算结果的最终模拟信号由数字/模拟(D/A)转换器转换成数字形式。由于数字/模拟运算的高度并行特性,虽然从现代数字计算机水平来看,这种运算的全部线路操作速度并不快,但却能得到很高的运算速度。采用这种运算方法,模拟运算的精确度限制为4—5个十进位。因此,数字/模拟运算器不能代替数字计算机中的运算器。但可用它来解决一些要求精确度不非常高的问题或部份问题。
This article describes a digital computer using digital simulation combined with a new method of computing operations. This operation is the digital / analog converter between - and serial transfer to complete. This transfer is controlled by a memory program and acts on a “multiplexer” that chooses to send analog signals to perform various computational operations. The resulting analog signal is converted to digital form by a digital / analog (D / A) converter. Due to the high degree of parallelism of digital / analogue operations, while the full line operation of such operations is not fast at the level of modern digital computers, it achieves high computational speed. Using this method of calculation, the accuracy of the simulation is limited to 4-5 decimal digits. Therefore, digital / analogue calculators can not replace calculators in digital computers. But it can be used to solve some or some of the problems that require less than very high accuracy.