EECS 1520 Chapter Notes - Chapter 2: Binary Number, Positional Notation, Natural Number

• School: York University
• Department: Electrical Engineering and Computer Science
• Course: EECS 1520
• Professor: Paul Kashiyama

Document Summary

Chapter 2 binary values and number systems (2. 1) numbers and computing. Computers are used to execute numeric computations and all types of info that we store and manage using a computer are stored as numbers. At the lowest level, computers store all info using digits 0 and 1. Numbers can be classified into all sorts of categories: natural numbers, negative numbers, rational numbers, irrational numbers, others that are imp in mathematics but not to the understanding of computing. General concept of a number: number: a unit belonging to an abstract mathematical system and is subject to specified laws of succession, addition, multiplication. A number is a representation of a value, and certain arithmetic operations. Numbers are separated into categories: can be consistently applied to such values: natural number: is the number 0 or any number obtained by repeatedly adding. Any value that can be expressed as a fraction (2. 2) positional notation.