To determine what the cell labeled "II" in the table represents, we need to analyze the context of the table and the options provided.
Step-by-Step Explanation
- Understanding ASCII Codes:
- ASCII (American Standard Code for Information Interchange) is a character encoding standard that uses numerical codes to represent characters. Each character is assigned a unique decimal code and a binary code.
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For example, the character 'N' has a decimal code of 78 and a binary code of 1001110.
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Identifying the Character for "II":
- The cell labeled "II" is likely a typographical error or misrepresentation in the table. It should represent the ASCII code for the character 'T', which has a decimal value of 84.
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The binary representation of the decimal number 84 needs to be calculated to find the correct binary code.
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Converting Decimal to Binary:
- To convert the decimal number 84 to binary, we can use the method of successive division by 2:
- 84 ÷ 2 = 42 remainder 0
- 42 ÷ 2 = 21 remainder 0
- 21 ÷ 2 = 10 remainder 1
- 10 ÷ 2 = 5 remainder 0
- 5 ÷ 2 = 2 remainder 1
- 2 ÷ 2 = 1 remainder 0
- 1 ÷ 2 = 0 remainder 1
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Reading the remainders from bottom to top gives us the binary representation: 1010100.
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Matching with Options:
- Now, we compare the binary code we derived (1010100) with the options provided:
- A. 1001101
- B. 1010100
- C. 1010101
- D. 1010110
- The correct binary representation for the character 'T' (which corresponds to the decimal 84) is B. 1010100.
Why Other Options Are Incorrect
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Option A: 1001101: This binary code corresponds to the decimal value 77, which represents the character 'M'. This is not the correct representation for 'T'.
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Option C: 1010101: This binary code corresponds to the decimal value 85, which represents the character 'U'. This is also not the correct representation for 'T'.
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Option D: 1010110: This binary code corresponds to the decimal value 86, which represents the character 'V'. Again, this is not the correct representation for 'T'.
Common Pitfalls
- Misreading the Table: Ensure that you carefully read the table and understand what each column represents.
- Binary Conversion Errors: When converting from decimal to binary, double-check each step to avoid mistakes in the remainders.
- Confusing Characters: Be cautious of similar-looking characters in ASCII, as they can lead to incorrect conclusions.
Revision Summary
- ASCII is a character encoding standard that assigns unique decimal and binary codes to characters.
- The character 'T' has a decimal code of 84, which converts to the binary code 1010100.
- The correct answer for the cell labeled "II" is option B: 1010100.
- Always verify your binary conversions and ensure you understand the context of the question.