Computer Science Basics
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Questions and Answers

What is the primary role of a data engineer?

  • To analyze data for business insights
  • To create efficient pathways for data transfer (correct)
  • To provide technical support for hardware issues
  • To develop software applications for users

    • Which of the following best describes a computer?

  • A device that only stores data permanently
  • A machine that requires no energy to operate
  • An electronic device that processes data and interacts with a user (correct)
  • A system that can operate independently without any components

    • Which statement is true regarding a computer's components?

  • Computers can function without software components
  • All computers must have at least one processing unit (correct)
  • Computers do not require electrical energy to operate
  • A computer's hardware components are optional for operation

    • Which of the following is a component of computer hardware?

    <p>Monitor (C)</p> Signup and view all the answers

    What is a necessary condition for a computer's functionality?

    <p>Electrical energy supply (A)</p> Signup and view all the answers

    How can a computer's operation be likened to human metabolism?

    <p>Both systems involve interconnected components (D)</p> Signup and view all the answers

    What is the primary function of computer software?

    <p>To perform specific tasks based on instructions (A)</p> Signup and view all the answers

    Which of the following is an example of software?

    <p>Twitter (D)</p> Signup and view all the answers

    What role does software engineering play in relation to computer software?

    <p>It is closely related to the development of software. (D)</p> Signup and view all the answers

    Which device is least likely to run computer software?

    <p>Monitor (B)</p> Signup and view all the answers

    What are the two types of low level programming languages?

    <p>Machine languages and assembly languages (B)</p> Signup and view all the answers

    Which of the following is true about assembly languages?

    <p>They require translation by an assembler into machine language. (A)</p> Signup and view all the answers

    What is the primary characteristic of machine languages?

    <p>They can be directly understood by a computer. (D)</p> Signup and view all the answers

    What do high level programming languages typically make use of?

    <p>Compilers and interpreters (C)</p> Signup and view all the answers

    What form of data do computer languages primarily use?

    <p>Zeros and ones (D)</p> Signup and view all the answers

    What is the primary purpose of application software?

    <p>To help users perform specific tasks (B)</p> Signup and view all the answers

    Which of the following is an example of application software?

    <p>Slack (C)</p> Signup and view all the answers

    How does understanding computer science benefit individuals?

    <p>By developing problem-solving and analytical skills (D)</p> Signup and view all the answers

    What is an example of a web-based application software?

    <p>Google Chrome (C)</p> Signup and view all the answers

    Which component is essential for a computer to function?

    <p>Interconnected hardware components (D)</p> Signup and view all the answers

    What is the primary role of system software?

    <p>To act as an intermediary between the user and the computer. (A)</p> Signup and view all the answers

    Which of the following is an example of system software?

    <p>Linux (B)</p> Signup and view all the answers

    Which statement about system programming is true?

    <p>System programming involves software that directly interacts with hardware. (C)</p> Signup and view all the answers

    What is a key characteristic of application software in relation to system software?

    <p>Application software relies on system software to function properly. (D)</p> Signup and view all the answers

    What is the primary difference between a bit and a byte?

    <p>A bit is a single unit, while a byte consists of eight bits. (A)</p> Signup and view all the answers

    Which of the following best describes the analogy made between system software and a house?

    <p>System software is compared to utilities like water and electricity. (A)</p> Signup and view all the answers

    How long would it take to download a 200 MB file at a speed of 200 Mbps?

    <p>8 seconds (D)</p> Signup and view all the answers

    What is the primary function of a variable in programming?

    <p>To allow for data labeling and manipulation. (B)</p> Signup and view all the answers

    Which symbol denotes a bit in data representation?

    <p>b (D)</p> Signup and view all the answers

    Which statement about bytes and bits is correct?

    <p>8 bits make up a byte. (D)</p> Signup and view all the answers

    Why is it important to identify data types in programming?

    <p>To ensure the computer understands how to execute operations correctly. (A)</p> Signup and view all the answers

    What might happen if an operation intended for numbers is applied to text data?

    <p>An error will likely occur during execution. (C)</p> Signup and view all the answers

    What is the primary purpose of pointers in programming?

    <p>To store the memory address of a value (B)</p> Signup and view all the answers

    What is a common outcome of incorrect operations on data types?

    <p>Errors during compilation or execution. (D)</p> Signup and view all the answers

    Which of the following languages is known for using static type checking?

    <p>Java (A)</p> Signup and view all the answers

    What happens during static type checking?

    <p>Type errors can be caught early in development (D)</p> Signup and view all the answers

    Which of these statements is true regarding different data types in programming languages?

    <p>Different programming languages have varying supported data types. (C)</p> Signup and view all the answers

    Which statement best describes dynamic type checking?

    <p>Data types are verified during program execution (B)</p> Signup and view all the answers

    What is an example of a value that cannot be used in mathematical operations?

    <p>&quot;Hello&quot; (B)</p> Signup and view all the answers

    What would happen if a multiplication operator is used incorrectly with different data types?

    <p>An error is thrown immediately during program execution (B)</p> Signup and view all the answers

    Flashcards

    Computer Hardware

    Physical components of a computer, like the keyboard, mouse, and CPU.

    Computer Software

    Set of instructions that tells a computer what to do, like a recipe.

    Applications (Apps)

    Programs that run on a computer and allow us to use it, like Google Chrome or WhatsApp.

    Operating System

    Software that manages the basic functions of a computer, like Windows or macOS.

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    Software Engineering

    Process of designing, developing, and maintaining software applications.

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    Computer

    An electronic device that receives input, processes data, produces output, and stores information.

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    Computer System

    A system of interconnected components that work together to allow a computer to function.

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    Software

    Instructions given to a computer to perform specific tasks.

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    Hardware

    The physical parts of a computer system that you can touch.

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    Data Processing

    The process of converting raw data into useful information.

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    System Software

    Software that interacts with the computer's hardware and manages its core functions, like running water and electricity in a house. It's necessary for other software to work.

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    System Programming

    Software that directly controls the computer's hardware, like managing storage or network access.

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    Operating System (OS)

    A type of system software that manages the computer's resources and provides a user interface.

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    Utility Software

    Software that helps maintain and optimize your computer, such as virus scanners and disk cleaners.

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    Firmware

    System software that is embedded directly into hardware components, governing their basic functions.

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    Computer Language

    Instructions written in a language that computers understand, using ZEROS and ONES.

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    Machine Language

    A programming language that is directly understood by a computer.

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    Assembly Language

    A programming language that needs to be translated into machine language by an assembler.

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    High-Level Languages

    Programming languages that are more human-readable and easier to understand. They use compilers or interpreters to translate into machine language.

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    Compilers and Interpreters

    Tools that convert high-level language code into machine language so the computer can understand it.

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    Bit

    The smallest unit of data in a computer, represented by a 0 or 1.

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    Byte

    A group of 8 bits, often used to represent a character like a letter, number, or symbol.

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    What is a variable?

    A variable is like a named container that stores a specific piece of data, such as a number, text, or a true/false value.

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    Data type

    The type of data a variable can store, determining what kinds of operations can be performed on it.

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    What are applications (Apps)?

    A program that allows you to use your computer to perform specific tasks, like browsing the internet, creating documents, or playing games.

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    Application Software

    Software that helps users perform specific tasks on a computer, such as creating documents, editing photos, browsing the web, or communicating with others.

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    Application Programming

    The process of creating, developing, and maintaining applications for computers.

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    Interconnected Components

    A computer depends on its interconnected components to function. Each component depends on the others.

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    Computer Science Skills

    Computer science skills like problem-solving, critical thinking, and analytical skills are valuable for working with complex algorithms.

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    Text data

    A data type used to represent text, words, sentences or any combination of characters.

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    Numeric data

    Represents numbers that can be used for calculations and comparisons.

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    Data Type Validation

    The process of ensuring that data used in a program is of the correct type.

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    Data type operations

    Operations that are designed to work with a specific data type, like adding numbers or concatenating strings.

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    Data Type Errors

    Errors that occur when attempting to use data in a way that is incompatible with its data type.

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    Pointer

    A programming concept used to store the memory address of a value.

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    Type Checking

    The process of verifying that the correct data type is used for an operation.

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    Static Type Checking

    Type checking done during compilation. Helps catch errors early in development.

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    Dynamic Type Checking

    Type checking done while the program is running. Can slow down execution.

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