Internet & World Wide Web: How to Program, Fifth Edition

E. Number Systems

Objectives

In this appendix, you’ll:

• Learn basic number systems concepts such as base, positional value and symbol value.

• Work with numbers represented in the binary, octal and hexadecimal number systems

• Abbreviate binary numbers as octal numbers or hexadecimal numbers.

• Convert octal numbers and hexadecimal numbers to binary numbers.

• Convert back and forth between decimal numbers and their binary, octal and hexadecimal equivalents.

• Learn binary arithmetic and how negative binary numbers are represented using two’s complement notation.

Outline

E.1 Introduction

E.2 Abbreviating Binary Numbers as Octal and Hexadecimal Numbers

E.3 Converting Octal and Hexadecimal Numbers to Binary Numbers

E.4 Converting from Binary, ...