These days,we find that the sphere of electronics has spread so vast,that it plays an important role in almost every activity of life.It has penetrated into our homes,our places of work and our means of communication from one place to another.It is believed that by the end of 2025,the electronics will be like the electric motor of today (i.e.,its presence will go unnoticed).Although,electronics has a large number of applications,yet the following are important from the subject point of view:

  1. Communication and entertainment applications.
  2. Instrumentation and control applications.
  3. Defence applivations.
  4. Applications in medicine.
  5. Computer - aided design of electronic circuits.