Computers are useful machines that help us learn, work, communicate and perform many everyday tasks. We can see computers in homes, schools, shops, hospitals, banks and offices.
In this chapter, you will learn what a computer is, where computers are used, the main parts of a computer and how computers are different from people.
Why This Chapter Matters
Understanding what a computer is and how it is used is the first step towards becoming a confident and responsible computer user. Before learning how to operate a computer, it is important to recognise computers and understand their basic purpose.
A computer receives information, works with it and gives a result.
These basic ideas will help you understand the computer parts and operations introduced in the following chapters.
What You Will Learn
- What a computer is.
- Where computers are used.
- Examples of computers in everyday life.
- Basic parts of a computer.
- How computers help people.
- How computers and humans are different.
- Why people are important when using computers.
Before You Begin
Before starting this chapter, you should be able to recognise common objects around you and understand that different machines are made to perform different tasks.
You do not need any previous computer knowledge. The lessons will introduce the basic ideas step by step.
Understanding the Learning Sequence
The lessons begin by explaining what a computer is. You will then learn where computers are used, identify common computer parts and finally understand some simple differences between computers and human beings.
This sequence builds basic computer awareness before you begin learning how to use individual computer devices.
Lessons in This Chapter
Complete the lessons in the order shown below.
Important Ideas
- A computer is an electronic machine that works with information.
- Computers can help people perform many different tasks.
- Computers are used in homes, schools, shops, hospitals and offices.
- A computer has different parts that perform different jobs.
- People give instructions to computers and use their results.
- A computer does not think or make decisions in the same way a person does.
- Computers are useful tools, but people are responsible for using them properly.
Chapter Practice
- What is a computer?
- Name one place where computers are used.
- Name two parts of a computer.
- How can a computer help us learn?
- Where might you see a computer in a shop?
- Can a computer work without people giving it instructions or information?
- Are computers and humans exactly the same?
- Who is responsible for using a computer safely and properly?
Quick Revision
A computer is an electronic machine that can receive information, work with it and produce results. Computers are used for many activities in homes, schools, shops, hospitals, banks and offices.
A computer has different parts, and each part has a particular job. Computers are useful tools, but they are different from human beings and depend on people to provide instructions and information.
Continue Learning
Start with Lesson 1 — What Is a Computer? and complete the lessons in sequence.