What is digital signal?

This is a signal that can be represented as a sequence of discrete (digital) values. Nowadays, the most common binary digital signals (bitstream) due to the ease of coding and their use in binary electronics.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.