Colors and Codes in Technology
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Questions and Answers

What does the code 32 represent in the given text?

  • Digit '1'
  • Letter 'A'
  • Space (correct)
  • Lowercase letter 'a'

    • Why was an expanded ASCII code developed?

  • To include Chinese ideograms
  • To develop different alphabets for European languages
  • To improve Internet connectivity
  • To assign codes from 128 to 255 for characters outside the U.S. keyboard (correct)

    • What was the main issue with the patchy encoding used for European letters?

  • Not enough codes for all European letters (correct)
  • Lack of support for Chinese ideograms
  • Incompatibility with American standards
  • Limited color encoding capabilities

    • What is the term used to define giving a specific meaning to a sequence of zeros and ones?

    <p>Encoding</p> Signup and view all the answers

    How many different strings of zeros and ones can be defined on a byte?

    <p>256</p> Signup and view all the answers

    Which system resolved encoding issues when the Internet appeared in the early 1990s?

    <p>Unicode code</p> Signup and view all the answers

    How many characters can be represented using 2 bytes in the Unicode system?

    <p>65536 characters</p> Signup and view all the answers

    What does the text state is required for a string of zeros and ones to represent a specific element?

    <p>Agreement</p> Signup and view all the answers

    What was one of the benefits of the proliferation of Unicode encoding for websites?

    <p>Correct display of website content regardless of country</p> Signup and view all the answers

    How many characters does the US ASCII standard cover?

    <p>128</p> Signup and view all the answers

    What is the value of the byte when all zeros are present according to the assumption in the text?

    <p>$0$</p> Signup and view all the answers

    Why is it important for a given code in encoding to always mean the same thing?

    <p>For consistency and clarity</p> Signup and view all the answers

    What does a code refer to when dealing with colors?

    <p>Colors</p> Signup and view all the answers

    What is the purpose of encoding colors into codes on a screen?

    <p>To match each point on the screen with a specified code</p> Signup and view all the answers

    How many colors did the initial black and white screens support?

    <p>256</p> Signup and view all the answers

    What does one byte save in terms of natural numbers?

    <p>0 to 255</p> Signup and view all the answers

    How do you encode numbers using binary entry?

    <p>Using one byte for numbers from 0 to 255</p> Signup and view all the answers

    What is required for saving the negative sign or a decimal point when encoding numbers?

    <p>A contract or encoding</p> Signup and view all the answers

    What does a value of 0 in the first bit of a byte indicate?

    <p>A plus sign</p> Signup and view all the answers

    How is a byte divided for encoding negative numbers?

    <p>One bit for sign, the rest for the absolute value</p> Signup and view all the answers

    What is the range of integers that can be saved using one byte for encoding?

    <p>&lt; -127; +127 &gt;</p> Signup and view all the answers

    How does increasing the number of bytes affect the range of integers that can be saved?

    <p>&lt; -32767; +32767 &gt;</p> Signup and view all the answers

    When encoding real numbers, what question needs to be answered regarding the decimal point?

    <p>Where to place the decimal point</p> Signup and view all the answers

    What issue arises when trying to encode the number 11.011 with only 8 bits available?

    <p>Number 10000.0000 falls out of range</p> Signup and view all the answers

    What method is defined as recording numbers with a mantissa and exponent?

    <p>Floating-point method</p> Signup and view all the answers

    How is the number 23.45 represented using moving the decimal point?

    <p>1.234<em>10 or 0.1234</em>100</p> Signup and view all the answers

    How many bits are used for the exponent in encoding a floating-point number on 32 bits?

    <p>8 bits</p> Signup and view all the answers

    What is the purpose of moving the decimal point in saving binary numbers?

    <p>To save space for significant zeros</p> Signup and view all the answers

    What are the two components of a floating-point number encoding?

    <p>Mantissa and Exponent</p> Signup and view all the answers

    How is the binary number 10000.0000 represented after moving the decimal point by 4 positions to the left?

    <p>1.00000000</p> Signup and view all the answers

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