
Electronics begins when Thomas Edison found that electric current could flow in a vacuum. This discovery, has lead to
the vacuum valves, some years later.
For many years, the electronics, distinguish themselves because the electricity was using vacuum tubes or gas. After,
is the solid state electronics with transistors and diodes in semi-conductor material, and many others devices that have
been appearing. It's called electronic "elements" discrete. Transistors and valves, could be replaced and could also
repair the circuits associated with them. This season, we had access to all components which constituted an electronic
circuit. Today, all this changed with the emergence of so-called "Integrated Circuits" which are so called because they
are made of diodes, transistors, capacitors and resistors, put a small "chip" of semiconductor material (usually silicon)
to which we can not access. In this case, no there is more to replace or repair any "element" that is part of an "Integrated
Circuit".
The "elements" that form an "Integrated Circuit", are placed together and are united physically the same chip semiconductors
that have completely lost their individuality, thus to be "elements" as discretos.They are extremely small, which happened
to talk about when we refer to microelectronics them.
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