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Software and the Electrical Engineer 2


For better understanding and legibility read Software and Electrical Engineer (previous article)
In part 1 we have seen about the basic logical operations done by electrical energy. In this part we are going to feel the data i.e. how the input data are transformed into electrical energy and how it is processed.
First, we have to know what data is. Data is a collection of 0s and 1s in a particular sequence, refer part I for further clarity. According to our concept 0s and 1s are electrical signals and we have to store temporarily or permanently to process it, but how the electrical signals can be stored that too in a particular sequence, is it possible? Yes, it is but not as electrical energy but as magnetic energy. Electrical energy can be converted into magnetic energy and stored in magnetic tapes.energy can be converted into magnetic energy and stored in magnetic tapes.
If you are born before 2000 you may have seen this magnetic tape, we use magnetic tape to record and retrieve audio, video and other data, still, your hard disks contain magnetic components.
How electrical signal sequence is stored and retrieved, a simple middle school concept when a electricity travels through a coil (a circular conductor) creates a respective magnetic field, this is how electrical energy is stored in the 1s region magnetic field intensity will be high 0s it would be low. Retrieving comes by reversal effect i.e. when a magnetic field moves over a conductor electrical energy is developed.
From the above illustration, you may get a clear idea how RAM and ROM are functioning in your computer and how electrical energy acts as data.
Third party image reference
Now your SSD (solid state drive), memory chips and pendrives uses static electronic components to know more about it comment below and click follow.
In next part, we are going to see about data processing. Yes, it is about CPU, how it is created? How is it functioning? What are the electrical components in it? From Intel 8085 to core i9
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