【全国英语等级考试四级】Unit 2 计算机与信息II-coversation(2/2)

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Unit 1 Unit 1 Computer and Information (II)  计算机与信息
COVERSATION2-2
Hints:
micro-miniaturizationBesides, the cost of production can be decreased.
The author says this micro-miniaturization can lead itself to greater safety in another way. How do you think of it?
Of course, it's true. In duplicate systems, for example, if one electronic device fails, a relay would automatically switch on a duplicate. But at the same time, the possibility of a failure is also decreased.
But how?
These micro-miniaturized devices have no bit of wire soldered here and there. There is no broken joints.
But what if a fault does occur? How do you repair it?
Using test equipment, of course. You locate the faulty circuit, then simply withdraw it, throw it away and plug in a new one.
It's really wonderful.