Software Development Chapter 6
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Questions and Answers

What are the two states of a conventional light switch?

  • On and Off (correct)
  • 1 and 2
  • Bright and Dim
  • Active and Inactive

    • What base system do humans primarily use for counting?

  • Base 8
  • Base 16
  • Base 10 (correct)
  • Base 2

    • In binary, what is the result of adding 1 + 1?

  • 1
  • 2
  • 11
  • 10 (correct)

    • What is the value of the binary number 100 in decimal?

    <p>4</p> Signup and view all the answers

    What does each bit's position in a byte determine?

    <p>Its value in decimal conversion</p> Signup and view all the answers

    What is the maximum decimal value that can be represented with one byte?

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

    What happens to the rightmost digit in binary when adding 1 to 1?

    <p>It becomes 0 and resets</p> Signup and view all the answers

    Why is it beneficial to understand binary to decimal conversion?

    <p>It's material to understanding how assembly works</p> Signup and view all the answers

    What is the primary advantage of assembly language compared to higher-level languages?

    <p>It can be faster.</p> Signup and view all the answers

    What does an assembler do?

    <p>Translates assembly code into executable machine code.</p> Signup and view all the answers

    For which purpose is assembly language NOT typically used?

    <p>Web development.</p> Signup and view all the answers

    What is the binary notational system?

    <p>A system that computers use to process information as 1s and 0s.</p> Signup and view all the answers

    What is the name of a device that translates assembly language?

    <p>Assembler.</p> Signup and view all the answers

    Which of the following is NOT a feature of assembly language?

    <p>High-level abstraction.</p> Signup and view all the answers

    Why might virus programmers prefer assembly language?

    <p>It is closer to the hardware.</p> Signup and view all the answers

    What is the smallest unit of data that a computer can understand?

    <p>Bit.</p> Signup and view all the answers

    What is a primary reason people need software programs?

    <p>Computers require instructions to operate.</p> Signup and view all the answers

    How many lines of code does Windows 10 reportedly have?

    <p>65 million lines</p> Signup and view all the answers

    What is a common misconception about lines of code in programming?

    <p>They always indicate quality of the software.</p> Signup and view all the answers

    Which of the following best describes the relationship between programming languages?

    <p>Each language has distinct grammar and syntax.</p> Signup and view all the answers

    What does most software developers typically specialize in?

    <p>A few languages but understand many.</p> Signup and view all the answers

    What is the purpose of the chapter mentioned?

    <p>To provide an overview of foundational concepts.</p> Signup and view all the answers

    Why might developers find lines of code a poor measure of success?

    <p>Lines of code do not relate to the program's functionality.</p> Signup and view all the answers

    Which statement about programmers, developers, and coders is true?

    <p>These terms are used interchangeably.</p> Signup and view all the answers

    What is the main limitation of standard ASCII?

    <p>It lacks support for non-English characters.</p> Signup and view all the answers

    How many characters does UTF-16 support?

    <p>65,536 characters</p> Signup and view all the answers

    What allows UTF-8 to be identical to ASCII?

    <p>It uses 8 bits for encoding.</p> Signup and view all the answers

    Which character set supports the most diverse range of characters and languages?

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

    Which component of a 32-bit Intel processor is being described with the identifier AL?

    <p>Accumulator register</p> Signup and view all the answers

    What does the binary code 10110000 00101010 represent?

    <p>Move into a memory register the value 42.</p> Signup and view all the answers

    What is the simplified hexadecimal representation of the binary command 10110000 00101010?

    <p>B0 2A</p> Signup and view all the answers

    Which of the following is NOT a characteristic of working with assembly language?

    <p>Simpler than high-level programming languages.</p> Signup and view all the answers

    What is the first step in creating a program using a compiled language?

    <p>Write the application in a programming language</p> Signup and view all the answers

    Which of the following is a common characteristic of a compiled programming language?

    <p>Translates source code to machine code using a compiler</p> Signup and view all the answers

    Which of the following programming languages is NOT listed as a popular compiled language?

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

    How does Java indicate code blocks in its syntax?

    <p>Using braces {}</p> Signup and view all the answers

    What file extension is commonly associated with executed programs in Windows?

    <p>.exe</p> Signup and view all the answers

    What character precedes single-line comments in Java?

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

    Which of the following correctly describes the source code that prints 'Hello, world!' in Java?

    <p>It uses double quotes for strings</p> Signup and view all the answers

    Which programming language's source code example begins with 'using namespace std;'?

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

    What does the command MOV represent in assembly language?

    <p>Move data from one location to another</p> Signup and view all the answers

    What is the purpose of the semicolon in assembly code?

    <p>It indicates the start of a comment</p> Signup and view all the answers

    Which of the following options correctly describes the structure of a line of assembly code?

    <p>It contains instructions, directives, data, and comments</p> Signup and view all the answers

    What is the first program often taught to beginners in programming?

    <p>Hello, world!</p> Signup and view all the answers

    Which of the following best describes a compiled language?

    <p>It is translated into machine code before execution</p> Signup and view all the answers

    In the example assembly code, what does 'mov edx,len' signify?

    <p>Setting the length of the message</p> Signup and view all the answers

    Which of the following statements about assembly language is true?

    <p>It allows direct hardware manipulation</p> Signup and view all the answers

    What does the instruction 'int 0x80' do in the assembly code example?

    <p>It initiates a system call to the kernel</p> Signup and view all the answers

    Study Notes

    Chapter 6: Software Development

    • Exam Objectives Covered: 1.1 Compare and contrast notational systems, 1.2 Compare and contrast fundamental data types and their characteristics, 4.1 Compare and contrast programming language categories, 4.2 Given a scenario, use programming organizational techniques and interpret logic.
    • Notational Systems:
      • Binary (base-2): Uses 1s and 0s.
      • Hexadecimal (base-16): Uses 0-9 and A-F.
      • Decimal (base-10): Uses 0-9.
      • Data Representation: Computers represent data using binary code.
      • ASCII (American Standard Code for Information Interchange): Codes for representing text and special characters using 7 bits.
      • Unicode (superset of ASCII): Codes that support more characters and languages using multiple bytes.

    Fundamental Data Types

    • Char: Represents a single character.
    • Strings: Represents zero or more characters.
    • Numbers: Whole numbers without decimals.
    • Integers: Whole numbers without decimals.
    • Floats: Numbers with decimals.
    • Boolean: Represents true or false values (typically 1 or 0).

    Programming Language Categories

    • Interpreted: Instructions are executed one at a time by an interpreter.
    • Compiled: The entire program is translated into machine code once before execution.
    • Scripting Languages: Used to automate tasks; they need an interpreter.
    • Scripted Languages: A type of scripting language.
    • Markup Languages: Describe the structure of documents or information (like web pages; Examples: HTML, XML.)

    Organizational Techniques

    • Pseudocode: A way to plan out the logic of a program using human-readable descriptions.
    • Flowchart: A visual representation of the program's logic flow using symbols.
    • Sequential Structure.
    • Branching: Uses if or if-else statements to take different paths based on conditions.
    • Looping: Repeats a set of statements while a condition is true (using while statements).

    Programming Concepts

    • Identifiers: Names for variables and constants.
    • Variables: Store and hold different values.
    • Constants: Values don't change throughout the program.
    • Containers: Hold multiple values (e.g., arrays and vectors).
    • Arrays: Data in a fixed size; all items with same data type.
    • Vectors: Data in a dynamic size; items can be different data types.
    • Functions: Reusable blocks of code for specific tasks.
    • Objects: Contain data (attributes/properties) as well as functions (methods).

    Data Representation

    • Binary, Decimal, Hexadecimal, ASCII, Unicode conversions.
    • Sample ASCII codes.
    • Using calculators to perform conversions.

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    Related Documents

    ITF Chapter 6 Software Development PDF

    Description

    This quiz covers key concepts in Software Development Chapter 6, focusing on notational systems and fundamental data types. Topics include binary, hexadecimal, decimal representation, ASCII, Unicode, and various data types like chars, strings, integers, and floats. Test your understanding of these essential programming concepts.

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