Bit, byte, kb and where did we get them from?

Of course as a rule all this comes from us.

How can we explain this for the common man?

If you explain the highly or more advanced things in any discipline in it's more raw way then that line of discipline has achieved it's goal. We can say it with certainty.

Well coming to the topic bit, byte, kb, mb, gb, tb etc are computer related terminologies. But, how did the inventors give such names to them? Well everything from the big bang theory, excavations of harappa and mohenjadaro, epics such as the ramayana and the mahabharata all did not happen overnight or compilations by one person. The bible from the book of genesis to the revelations took time over centuries. Everything was got in bits which was compiled painstakingly overtime across many generations. The latest being is science and technology in computers. Tomorrow if want the posterity or your grandchildren's grandchildren's to know what you have done in your time. You'll You'll have to simply and compile it in a way that the future generations after you have gone hundred's of year later will be able to translate it and understand it following certain universal rules followed universally.

The first time you're in a computer class they start you with bit, bytes etc or the generations of computers. As you advance you'll try to understand this in a simple and universal rule followed universally. So your first or second class will be greek and latin. So anything like a mobile phone if it is still not in the hands of a common man it means it is still going research. So if you can translate highly complex things in a simple way a common man in your locality is able to understand it then you can be sure of your invention is starting to reach it's objective.

Conclusively, there's nothing to fear of technology if you can use it safely for the use of man and for the greater good of our earth for the safety and growth. To put it more plainly you cannot give a nuclear device that can detonate to every human and tell them to keep it safe, because it is more advanced than conventional warfare to keep him and his surroundings safe from thieves and robbers also because it can cause damage on a vast scale over kilometers. It literally translates anything safe for use by a common man means that it is capable of advancement for him. The radio, television are all examples of such advancements. Once considered as a luxury and it is no more now. Today what is considered as luxury can be more common in the future.