Types in Programming Languages
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Questions and Answers

What is the primary purpose of a type system in a typed programming language?

  • To store values in a specific range
  • To allocate memory for variables
  • To perform arithmetic calculations
  • To interpret the bit streams in memory (correct)

    • What is the main difference between a char and an int in the C language?

  • The range of values they allow
  • The number of bytes they occupy (correct)
  • The operations they can perform
  • The type of values they can store

    • What determines the range of possible values for a type?

  • The type of values it can store
  • The operations it can perform
  • The variable it is assigned to
  • The number of bytes it occupies (correct)

    • What is the role of a type in allocating memory for variables?

    <p>To identify the contents of the variable</p> Signup and view all the answers

    How many bits does a float occupy in IEEE 754?

    <p>32</p> Signup and view all the answers

    What is the main benefit of using different types to store different information?

    <p>It allows for more efficient use of memory</p> Signup and view all the answers

    What determines the range of values that a type can store?

    <p>Number of bytes allocated for a type</p> Signup and view all the answers

    What is the relation between types and raw memory as illustrated in the figure?

    <p>Types define how to store values in raw memory</p> Signup and view all the answers

    How do we conclude a declaration in C?

    <p>With a semi-colon</p> Signup and view all the answers

    Why do we avoid using certain words in variable names?

    <p>Because they are reserved by the C language</p> Signup and view all the answers

    How do we declare multiple variables of the same type in a single declaration?

    <p>By separating them with commas</p> Signup and view all the answers

    What is the advantage of using a meaningful name for a variable?

    <p>It makes the code more readable</p> Signup and view all the answers

    How many bytes does a double typically occupy?

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

    What is the minimum number of bits in a short int?

    <p>16</p> Signup and view all the answers

    What is the purpose of the const qualifier?

    <p>To qualify a type as holding a constant value</p> Signup and view all the answers

    How does C store characters and symbols?

    <p>As integral values</p> Signup and view all the answers

    What is the purpose of the collating sequence?

    <p>To associate each character and symbol with a unique integer value</p> Signup and view all the answers

    What is the advantage of the 2's complement rule?

    <p>It represents negative values more efficiently</p> Signup and view all the answers

    What is the purpose of the IEEE Standard 754?

    <p>To standardize binary and floating-point arithmetic</p> Signup and view all the answers

    What is the minimum number of bits in a long long int?

    <p>64</p> Signup and view all the answers

    What is the purpose of size specifiers?

    <p>To adjust the size of the int and double types</p> Signup and view all the answers

    What is the purpose of the Unicode standard?

    <p>To provide a comprehensive collating system</p> Signup and view all the answers

    What is the primary function of a type in a typed programming language?

    <p>To define the range of possible values for storing data</p> Signup and view all the answers

    Which of the following types occupies one word and can store an integer value?

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

    What is the primary purpose of different types in a typed programming language?

    <p>To store different information</p> Signup and view all the answers

    How many bytes does a char occupy in memory?

    <p>One byte</p> Signup and view all the answers

    What is the relation between types and raw memory?

    <p>Types are the rule that defines how to store values in memory</p> Signup and view all the answers

    What determines the range of possible values for a type?

    <p>The number of bytes occupied by the type</p> Signup and view all the answers

    What is the primary difference between a char and an int in the C language?

    <p>The number of bytes occupied</p> Signup and view all the answers

    What is the purpose of a type system in a typed programming language?

    <p>To interpret the bit streams in memory</p> Signup and view all the answers

    How does a type define the storage of values in memory?

    <p>By defining how to store values in memory</p> Signup and view all the answers

    What is the primary purpose of the types in the C language?

    <p>To store different information</p> Signup and view all the answers

    What is the primary limitation of the float and double types in IEEE 754?

    <p>They cannot store all possible floating-point values exactly</p> Signup and view all the answers

    What is the purpose of specifying a type in a variable declaration in C?

    <p>To identify the properties of the variable</p> Signup and view all the answers

    What is the significance of the execution environment in determining the range of values for floating-point types?

    <p>It determines the range of values the type can store</p> Signup and view all the answers

    Why do we avoid using certain words in variable names in C?

    <p>To follow C++ compatibility</p> Signup and view all the answers

    What is the effect of limiting the number of bits in the significand of floating-point types?

    <p>It makes the stored values approximate</p> Signup and view all the answers

    What is the purpose of a declaration in C?

    <p>To associate a type with a variable</p> Signup and view all the answers

    How do we group multiple identifiers of variables that share the same type in a single declaration?

    <p>By separating them with commas</p> Signup and view all the answers

    What is the significance of the number of bytes allocated for a type in determining its range of values?

    <p>It determines the range of values the type can store</p> Signup and view all the answers

    What is the result of using a limited number of bits in the exponent of floating-point types?

    <p>Limited range of values that can be stored</p> Signup and view all the answers

    What is the purpose of specifying a meaningful name for a variable in C?

    <p>To improve code readability</p> Signup and view all the answers

    What is the minimum number of bits required to store a long int?

    <p>32</p> Signup and view all the answers

    What is the primary benefit of using size specifiers in C?

    <p>To specify the minimum number of bits required for a type</p> Signup and view all the answers

    What is the significance of the ASCII and EBCDIC collating sequences?

    <p>They associate each character and symbol with a unique integer value</p> Signup and view all the answers

    What is the advantage of the 2's complement rule for storing negative integers?

    <p>It eliminates the need for separate addition and subtraction circuits in the ALU</p> Signup and view all the answers

    What is the primary component of a floating-point number?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of the const qualifier in C?

    <p>To ensure that a variable's value cannot be changed</p> Signup and view all the answers

    What is the significance of the Unicode standard?

    <p>It provides a much more comprehensive collating system</p> Signup and view all the answers

    How does C store characters and symbols?

    <p>Using the ASCII collating sequence</p> Signup and view all the answers

    What determines the range of values that a type can store?

    <p>The number of bits used to store the type</p> Signup and view all the answers

    What is the significance of the IEEE Standard 754?

    <p>It provides a model for binary and floating-point arithmetic</p> Signup and view all the answers

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