Basics of Digital Electronics

Hi,

Friends and hobbyists, this is my first blog about my study i.e. on digital electronics and here you are going to understand and get some idea about digital IC's and how they work and different types in it, etc.  

The digital systems like computers, microprocessors, microcontrollers. etc., need some data which they can handle in numeric i.e. numbers, alphabets or some other special characters. Basically, the digital data is stored and transmitted as a group of binary digital data.

The process of converting numbers, alphabets and some other special characters into binary format is known as Coding and combination of binary digits which is represented by numbers, alphabets or symbols are called digital codes.

The digital codes are classified into:     

1. Weighted codes

2. Un-weighted codes

1. Weighted codes: The digital code which exhibits the specific weights assigned to the bit position is known as weighted codes.

In this, each position represents a specific weight, for example, a number is taken as 567 then weight of 5 is 100, the weight of 6 is 10 and the weight of 7 is 1

Example: 8421, 2421 and 5411 codes

These codes are useful for I/O operations in digital circuits, data manipulation during arithmetic operations, etc. 

 2. Un-weighted codes: The digital code which exhibits no specific weights assigned to the bit position is known as weighted codes.

In this, each position is not assigned to any specific weight.

Example: Excess-3 code and Gray code.

These codes are useful in certain arithmetic operations in digital electronics. 

I'll be explaining about BCD code, Excess-3 code, and Gray codes 

...Thanks for reading...