2.5.2

Translation - Compliers & Interpreter

Test yourself

Compilers

Translators are special software that convert source code into executable binary. Compilers are just one type of translator:

Illustrative background for CompilersIllustrative background for Compilers ?? "content

Compilers

  • Compilers translate the whole of a program in one go.
  • Compilers will provide a list of errors once it has attempted the compilation process:
    • This can make debugging easier.
  • C, C++, Visual Basic, and Swift are all compiled languages.
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Pros of compilers

  • Compilers produce an executable program:
    • There is no need to repeat this process more than once per version of the software.
  • Compilers hide the source code from the end user:
    • This helps to protect developers' intellectual property.
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Cons of compilers

  • The compilation process can be very slow:
    • This can slow down development if many small changes need to be made.

Interpreters

Interpreters are a type of translator which convert high level languages to executable machine code.

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Interpreters

  • Interpreters translate high-level source code into executable binary one line at a time.
  • Python and JavaScript are examples of interpreted languages.
Illustrative background for Pros of interpretersIllustrative background for Pros of interpreters ?? "content

Pros of interpreters

  • Interpreters will stop as soon as they encounter an error:
    • This is useful for debugging.
  • Interpreted languages are 'portable':
    • This means that they can be run on many different types of central processing unit as long as there is an interpreter available for the platform.
Illustrative background for Cons of interpretersIllustrative background for Cons of interpreters ?? "content

Cons of interpreters

  • Running an interpreted program is slower than a compiled program because we have to translate each line every time we run the software.
    • But it is quicker to get started which can be good for small changes.
  • Interpreters do not produce a compiled program file:
    • The process must be repeated each time the program is run.

Jump to other topics

1Computer Systems

1.1Systems Architecture

1.1.1Architecture Introduction

1.1.2Von Neumann Architecture

1.1.3Fetch-Execute Cycle

1.1.4Factors Affecting CPU Performance

1.1.5Elements of Computer Systems

1.1.6Exam-Style Questions - Von Neumann Architecture

1.2Memory & Storage

1.2.1Types of Memory

1.2.2Flash Memory

1.2.3Virtual Memory

1.2.4Exam-Style Questions - Primary Memory

1.2.5Capacity

1.2.6Solid State Storage

1.2.7Magnetic Storage

1.2.8Examples of Magnetic Storage

1.2.9Optical Storage & its Properties

1.2.10Examples of Optical Storage

1.2.11End of Topic Test - Computer Systems

1.2.12Grade 9 - Storage

1.2.13Exam-Style Questions - Storage

1.2.14Units of Information

1.2.15Number Bases

1.2.16Converting Number Bases

1.2.17Hexadecimal

1.2.18Binary Arithmetic

1.2.19Representing Text

1.2.20ASCII & Unicode

1.2.21Representing Images

1.2.22Representing Sound

1.2.23Data Compression

1.2.24End of Topic Test - Representation

1.2.25Exam-Style Questions -Data Conversions

1.3Computer Networks, Connections & Protocols

1.3.1Benefit of Networks

1.3.2Network Performance

1.3.3Networks: How Do Packets Get Routed?

1.3.4Types of Networks

1.3.5Client-Server Model

1.3.6Pros & Cons of Client-Server Model

1.3.7Peer-to-Peer Model

1.3.8Pros & Cons of Peer-to-Peer Model

1.3.9Network Hardware

1.3.10What is the Internet?

1.3.11URLs

1.3.12DNS & Web Hosting

1.3.13The Cloud

1.3.14Pros & Cons of the Cloud

1.3.15Exam-Style Questions - Networking Models

1.3.16Topology

1.3.17WiFi

1.3.18WiFi Encryption

1.3.19IP Addresses

1.3.20MAC Addresses

1.3.21Network Protocols

1.3.22Application Protocols

1.3.23Layers

1.3.24Advantages of Layering

1.3.25Exam-Style Questions - Network Protocols

1.4Network Security

1.4.1Forms of Attack

1.4.2Malware

1.4.3Social Engineering

1.4.4Phishing

1.4.5Common Active Attacks

1.4.6Information Security

1.4.7SQL Injection

1.4.8Network Administration

1.4.9Protecting Against Malware

1.4.10Authentication & Passwords

1.4.11Encryption

1.4.12End of Topic Test - Networks

1.5Systems Software

1.5.1Types of System Software

1.5.2Operating Systems

1.5.3Operating System Managers

1.5.4File Management

1.5.5Device Management

1.5.6User Management

1.5.7Utility Software: Encryption & Defragmentation

1.5.8Utility Software: Data Compression & Backup

1.6Ethical, Legal, Cultural & Environmental Concern

1.6.1Open Source vs Proprietary Software

1.6.2Licensing Issues

1.6.3Ethical Issues

1.6.4Ethical Issues 2

1.6.5Exam-Style Questions - Ethical Issues

1.6.6Legal Issues

1.6.7Legal Issues 2

1.6.8Freedom of Information Act (2000)

1.6.9Cultural Issues

1.6.10Environmental Issues

1.6.11Positive Environmental Impact

1.6.12Privacy Issues

1.6.13Stakeholders

1.6.14End of Topic Test - Software & Issues

2Computational Thinking, Algorithms and Programming

2.1Algorithms

2.1.1Computational Thinking

2.1.2Algorithmic Thinking

2.1.3Pseudocode & Flow Diagrams

2.1.4Interpreting & Correcting Algorithm

2.1.5Completing Algorithms

2.1.6Search Algorithms

2.1.7Binary Search

2.1.8Overview of Sort Algorithms

2.1.9Bubble Sort & Insertion Sort

2.1.10Merge Sort

2.1.11Exam-Style Questions - Sorting Algorithms

2.2Programming Fundamentals

2.2.1Fundamentals

2.2.2Program Flow 1

2.2.3Program Flow 2

2.2.4Arithmetic & Relational Operators

2.2.5Boolean Operators

2.2.6Data Types

2.2.7Arrays

2.2.8Strings

2.2.9File Handling

2.2.10Structuring Data

2.2.11End of Topic Test - Programming

2.2.12Exam-Style Questions - Translation

2.3Producing Robust Programs

2.3.1Defensive Design Considerations

2.3.2Defensive Design Considerations 2

2.3.3Maintainability

2.3.4Testing

2.3.5Test Plans

2.3.6Error Types

2.3.7End of Topic Test - Programming

2.3.8Exam-Style Questions - Testing

2.4Boolean Logic

2.4.1Computational Logic

2.4.2Boolean Logic

2.4.3Boolean Operators

2.4.4Grade 9 - Logic

2.5Programming Languages & IDEs

2.5.1High-Level vs Low-Level Languages

2.5.2Translation - Compliers & Interpreter

2.5.3Translation - Assemblers

2.5.4Integrated Development Environments

2.5.5Exam-Style Questions - Translation

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High-Level vs Low-Level Languages

Translation - Assemblers