mardi 1 septembre 2009

How Can Digital Beat Analog?

I was a student of electronics in the 80s. In analog, you could have a virtually infinite number of values, but those who had digital zeros. And binary transmission means a bunch of zeros and ones

For example, in analog transmission, if I wanted to convey the number 254, I just want to send in 3 digits, a two and five and four. But in digital, especially binary transmission, it should be 8 digits, ie 11,111,110, a series of seven, then followed by a zero.

I talked about binary transmission when talking about digital, because they are not the same thing. Binary transmission is simply a type of digital transmission. There may be many others. For example, it may be the Trinity, which transmit zeros, Ones and twos. You get the idea.

This is because in the creation of electronic circuits, you can easily create switching circuits that have a high voltage, ie, one and a low voltage, ie zero.

So, back to the original question. Why not both analog and digital? Are we missing something? Did out engineering teachers miss us about an important part of the deal here? For example, would have on the economy and not the electronics at all?

We consulted our teachers. Although they all knew that digital was obsolete, there were few who could give us more of the party's standard lines. Of course there were the "elders" who stood firmly behind the power electronics based on the analog paradigm.

It was the belief of these old timers that electronics was the real power of electronic vacuum tubes and a lot of heat. They said that large factories and industrial units that ran on these power electronics.

They pooh-poohed the latest fads revolving around digital electronics as a mode that was no better than making doorbells or youth projects. Probably that is all they have been exposed in the name of digital electronics. Now that two decades have passed, we have answered many of our questions at first, but we have also created new and more difficult questions.

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