1

Some Basic Ideas

Contents

  • Computer software and data, and the role of ‘high-level’ languages
  • Program control structures
  • Pseudocode and top-down design
  • Classes and object-oriented programming
1.1 INTRODUCTION

In this chapter, we review some fundamental concepts underlying computer programs and software development.

1.2 WHAT IS A COMPUTER PROGRAM?

Computer programs perform tasks and solve problems by manipulating data. The data might be the characters that my word processor is assembling right now to form this sentence, the text and images comprising a Web page or again the satellite navigation signals and other information needed to fly an airliner across a continent.

Representing data appropriately so that they may be stored and manipulated ...

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