ALEX Resources

   View Standards     Standard(s): [DLIT] (6) 27 :

21) Identify varying data structures/systems and methods of classification, including decimal and binary.

Examples: Difference between a bit and a byte, bit representation, pixels.

[DLIT] (6) 28 :

22) Summarize the purpose of the American Standard Code for Information Interchange (ASCII).

Learn how text, images, and sound are converted into binary so they can be processed by a computer and how images and sound are compressed to create smaller files.

Includes information on ASCII, unicode, binary, pixels, bits, analog, digital, data compression, lossless compression.

   View Standards     Standard(s): [DLIT] (6) 27 :

21) Identify varying data structures/systems and methods of classification, including decimal and binary.

Examples: Difference between a bit and a byte, bit representation, pixels.

[DLIT] (6) 28 :

22) Summarize the purpose of the American Standard Code for Information Interchange (ASCII).

This lesson introduces a formal binary system for encoding information, the ASCII system for representing letters and other characters. At the beginning of the lesson, the teacher introduces the fact that computers must represent information using either "on" or "off". The class is then introduced to the ASCII system for representing text using binary symbols and practices using this system before encoding their own messages using ASCII.

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