When we talk about electronic, this simple work has an extensive range of technology. Basically electronics can be divided in to two main groups.
An analog computer is the one that measures or processes data in a continuous from.
The analog computer represent physical quantities like speed, weight, temperature etc. through an analog with the electrical properties of current and voltage. Analog computer are the first computer being developed and provided the basis for the development of modern mainly made of electrical devices like resisters, amplifiers and transistors.
In a digital electronic the result is in number system.
Digital computers represent physical quantity with the help of digits numbers. These numbers are used to perform arithmetic calculations and also make logical decisions to reach a conclusion depending on the data they receive from the user. In general, digital computers are easy to program and are used for general purpose.