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Unit: Digital information

0

Possible mastery points

Bits and bytes

Learn
How do computers represent data?
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Binary & data
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Bits (binary digits)
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Bytes
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Practice
Bits (binary digits)Get 3 of 4 questions to level up!
BytesGet 3 of 4 questions to level up!

Binary numbers

Learn
Binary numbers
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Decimal system refresher
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The binary number system
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Converting decimal numbers to binary
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Patterns in binary numbers
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Practice
Binary numbersGet 3 of 4 questions to level up!

Hexadecimal numbers

Learn
Hexadecimal numbers
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Practice
Hexadecimal numbersGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 400 Mastery points

Limitations of storing numbers

Learn
Number limits, overflow, and roundoff
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Practice
Number limits, overflow, and roundoffGet 3 of 4 questions to level up!

Storing text in binary

Learn
Storing text in binary
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Practice
Storing text in binaryGet 3 of 4 questions to level up!

Converting analog data to binary

Learn
Converting analog data to binary
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Practice
Converting analog data to binaryGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 300 Mastery points

Data compression

Learn
The need for compression
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Lossless text compression
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Lossless image compression
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Lossless bit compression
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Lossy compression
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Practice
Lossless file compressionGet 3 of 4 questions to level up!
Lossy vs. lossless compressionGet 3 of 4 questions to level up!

Digital copyright and licenses

Learn
Copyright, DRM, and the DMCA
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Creative commons and open source
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Practice
Digital copyright and licensesGet 3 of 4 questions to level up!

Quiz 3

Level up on the above skills and collect up to 300 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1000 Mastery points!

About this unit

This unit explains how computers store information digitally, as binary data. Learn about the binary number system, the conversion of analog to digital data, and data compression strategies.