0. I can identify units of data storage, including bits, nibbles, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes.
1. I can explain why data must be converted into binary format before being processed by a computer.
2. I can calculate data capacity requirements.
3. I can convert denary numbers to binary (up to 8 bits) and binary numbers to denary.
4. I can add two binary numbers (up to 8 bits) and explain overflow errors.
5. I can convert denary numbers to two-digit hexadecimal numbers and vice versa.
6. I can convert binary numbers to hexadecimal and vice versa.
7. I can perform binary shifts and explain their effect.
8. I can explain how character sets use binary codes to represent text.
9. I can describe how the number of bits per character affects the number of possible characters in sets such as ASCII and Unicode.
10. I can explain how images are made up of pixels represented in binary and what metadata means.
11. I can describe how colour depth and resolution affect image quality and file size.
12. I can explain how sound is sampled and stored digitally.
13. I can describe how sample rate, duration, and bit depth affect sound quality and file size.
14. I can explain why data compression is needed.
15. I can describe the difference between lossy and lossless compression.
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