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Review: Encoding And Numbers

Synthesize understanding of text encoding schemes and perform comprehensive base conversions across systems.

5 lessons
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What You Can Now Do

Checklist of chapter capabilities.

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After This Chapter, I Can...
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flashcard

Key Terminology Recap

Flashcards for all major definitions.

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quiz

Comprehensive Challenge

Progressive difficulty questions.

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How many bits were initially used in the ASCII encoding scheme to represent characters on the English keyboard?

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Textbook Exercise: Conversions

Descriptive textbook conversion question.

Exercise 17: Encode the word 'COMPUTER' using ASCII and convert the encode value into binary values.

(Hint: 'A' = 65, 'B' = 66, etc.)

Focus on: accurately mapping each letter to its decimal cipher before converting to binary.

Focus on: the conversion method (repeated division by 2 or positional adding) for each letter.

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Chat

Case Sensitivity in Computers

Socratic chat addressing case differences.

Learners can ask follow-up questions and keep the thread going.

This is a mechanism question: we need to figure out how a computer differentiates human text using encoding.

Let's start here: before we even translate anything to binary, do you think a computer treats an uppercase 'S' and a lowercase 's' as the exact same decimal number in ASCII? Just give me your initial thought.

over 2 years ago