CA Ch3 - Data Representation

Explore how data is represented and stored in digital systems.

1. Unit of Data

Learn common data units from bit to terabyte and how they are used.

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2. Number System

Explore number systems used in computing.

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3. Unsigned and Signed

Use an interactive visualizer to understand how unsigned integers map to binary bits.

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4. Character Encoding

Explore how computers represent letters, numbers, and symbols.

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5. Barcode and QR Code

Understand how barcodes and QR codes store data and how damage affects their readability.

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6. Multimedia

Explore core multimedia elements and common media formats used in ICT.

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