We know
there are two types of signals, one is analog or
continuous signal and the second one is Digital or discrete signal. So the
science or field of research in the area of engineering is termed as Analog
and Digital Electronicsrespectively. Now coming to the area
of Digital Electronics, it is essential to understand wide range of
applications from industrial electronics to the fields of communication, from
micro embedded systems to military equipment. The main and perhaps the most
revolutionary advantage of digital electronics is the decrease in size and the
improvement in technology. We have chosen to discuss various topics of Digital
Electronics from the very fundamentals of this subject such as Number systems,
logic circuits going deep into those topics, like discussing various types of
number systems, which we should use and how, inter relation among those number
systems to the somewhat tougher concepts of Digital Electronics like TTL, PMOS-NMOS logic, Flip Flops etc. to get an
idea about the whole subject.
All the
topics of the related articles have been amply presented by diagrams, designs,
tables and examples to make every topic understandable as much as possible. The
topics are written in such a manner that if one go through them he will grasp
the very basic idea at first attempt and further reading will enhance the
technical knowledge.
Now let us inform you what we have included in the topics of Digital
Electronics, as we have already discussed we have started from the very basic
topics of Digital Electronics like Number system. Then we have discussed the
extension of number system like various types of number system, interrelation
among different types of number systems making oneself absolutely comfortable
with the fundamentals of Number system. Then we have enlightened the very
important field of Digital Electronics i.e. Binary Arithmetic and Boolean algebra. And we have discussed about them in
elaborated manner. From binary
addition, binary subtraction, binary multiplication and binary division to the basics of
Boolean algebra.
After that we have written topics about various types of codes such as ASCII code, Gray Code, Hamming code which have made
the input output format very easy. Then various types of logic gates (AND gate, OR gate, NOT gate, NAND gate, NOR gate, EX-OR gate) have been discussed
in an elaborated manner with diagrams, explanations and truth tables to make each one
of them very easy to understand.
These may
be classified as the fundamentals of Digital Electronics without which the
subject cannot be understood at all. So after discussing about them we have
gone deep into the subject. Topics like TTL, Logic Families, various MOS gates,
Flip Flops (J-K, D, T etc.) have been
discussed.
The sole purpose of introducing this subject in our Electrical Engineering website is
because now days all the engineering streams are interrelated and the knowledge
of Digital Electronics is very much essential for an electrical Engineer and we
have tried our best to make oneself familiar with the subject technically as
much as possible.