The development of electronic computers is commonly described using computer generations. Each generation represents important changes in the technology used to build computers.

Modern computers come in many forms. They can be classified according to their size, purpose, design and computing capability.

The system unit is the main enclosure of many desktop computers. It contains important electronic components.

The processor, commonly called the CPU in basic computer education, executes program instructions and performs calculations and logical operations.

Computers represent information digitally. Storage and memory capacities are commonly described using units based on bytes.

Different storage technologies have different advantages and uses.

A peripheral is a device connected to or used with a computer to provide input, output, storage or another supporting function.

An operating system manages computer resources and provides services that allow users and applications to work with the computer.

Many operating systems allow users to personalise parts of the desktop environment.

Folders can contain files and other folders. This creates a hierarchical folder structure.

As your word-processing skills improve, you can create documents with better structure and more professional formatting.

Paragraph formatting changes the arrangement and appearance of an entire paragraph.

Tables organise related information into rows and columns. The box where a row and column meet is called a cell.

Page-design tools can make documents clearer and more attractive when used carefully.

Many word processors allow users to add shapes and decorative text. Microsoft Word calls one of its decorative text features WordArt. Other programs may use different names.

Shapes can be useful for diagrams, labels and simple flowcharts. Decorative text can be useful for headings when it remains easy to read.

A spreadsheet is software used to organise, calculate and analyse data using a grid of cells.

Rows usually run horizontally and are identified by numbers. Columns run vertically and are commonly identified by letters.

Spreadsheet cells can contain different kinds of information.

Spreadsheet formulas can calculate values automatically. In many spreadsheet programs, a formula begins with an = sign.

A good presentation communicates ideas clearly without overcrowding the slides.

A slide layout controls how placeholders and content are arranged. A theme provides coordinated visual styling.

Presentation software can often combine several kinds of media.

A transition is a visual effect that appears when moving from one slide to another.

A computer network connects computers and other devices so that they can communicate and share resources.

Networks may allow users to:

• Communicate between connected devices.
• Share printers and other resources.
• Exchange files where permission is provided.
• Access shared services.
• Connect to larger networks such as the internet through appropriate equipment and services.

A webpage is a document or resource available on the web. A website is generally a collection of related webpages and resources available under a common web presence.

Good search skills help students find useful information more efficiently.

Cyber safety means using digital devices, accounts and online services in ways that help protect your privacy, security and wellbeing.

An algorithm is a clear sequence of steps for completing a task or solving a problem.

🥪 Example: Simple Sandwich Algorithm

A useful algorithm should be:

Block-based programming allows beginners to build programs by connecting visual instruction blocks instead of typing every command as text.