Lecture 1-1 Number Systems and Codes

We learnt about the number systems including Decimal, Binary, Hexadecimal, Oct. More importantly, we studied how to convert one number system to another number system, and vice versa, using the formal polynomial representation

We studied the characteristic feature of number system theory - Complement. We mostly played with the Binary number system to find out how to use the complement to represent negative number and its sign, which are triggered using digital logic components to perform arithmetic operations. We also learned that, using 2's complement, we can subtraction to addition operation only.

We move on to code systems. Using the Binary system, we can encode data in terms of binary combinations, which are used for various daily life applications.