Types of Computers

1. Desktop computers

A desktop normally has separate components such as a monitor, system unit, keyboard and mouse. It is designed to stay in one place and is useful for workstations, offices, classrooms and other fixed locations.

Basic use: turn on the monitor and system unit as required, sign in, use the keyboard and mouse, and shut down through the operating system when finished.

2. Laptops

A laptop combines the screen, keyboard, touchpad, battery and main computer components in one portable device. Handle it carefully, keep vents unobstructed and carry it with two hands when appropriate.

To begin: open the lid, press the power button, wait for startup, sign in, and use the touchpad or an external mouse.

3. Workstations and high-performance computers

Some computers are designed for demanding tasks such as engineering, 3D work, professional video editing or scientific workloads. Their components may be more powerful, but the basic ideas of input, processing, output and storage still apply.

4. Servers

A server is a computer that provides services or resources to other computers over a network. You may not operate the server directly in everyday use, but you may use services provided by one, such as a website, shared files or an email system.

5. Choosing a computer for a task

Start with the task rather than the brand. Ask: What software must run? How much storage is needed? How much memory is appropriate? Will the device travel? What ports and accessories are needed? What is the budget?

Do not assume that the most expensive computer is automatically necessary. Match the computer to the work.

6. Practice task

Look at your computer and decide whether it is a desktop or laptop. Write three tasks it can perform. Then describe one task for which you would want a larger screen, more storage, more memory or a more portable device, and explain why.

Quick practice

Now perform the practical task in this lesson on a real computer whenever possible. If you cannot perform it yet, repeat the steps slowly until you can do them without guessing.

Mastery test

Take the mastery test only after you have read the lesson and attempted the practical tasks. You need 80% or higher.