what↓ is what↑↑???

As the days are going on, the number of questions in our brain are doubled↑ and the time to learn we are spending ↓ less.
       As Technology is tremoundously developing, we must be in a position to use this technology. If you want to use technology we must know what is what!!!!.
      If we are capable of learning anything and if we are in a position to explain then you can servive it any where so., all the people musr be aware of latest technnology.
    Here i am going to explain some of words and their meanings:
  1) Engineering: converting the theoritical knowledge into practical knowledge and applied it for better use.
 2)Technology: It is nothing but " inventing the new one which is different from existing one" .
3)computer:
   → we can call computer as a SYSTEM.
   → computer performs the operations in a systematic so we also call it as system.
4) Modem: It is abbrevated as " Modulization and Demodulization".
   → modulization is nothing but converting the input into strechable format i.e., converting into less bandwidth, demodulization is not but strechable format into output i.e., less band width to output.
  → here, modulization and demodulization can done for easy to transfer data.
       These are the some of words which we every day use in modern world.