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Computer Programming for Absolute Beginners

You're reading from   Computer Programming for Absolute Beginners Learn essential computer science concepts and coding techniques to kick-start your programming career

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Product type Paperback
Published in Jul 2020
Publisher Packt
ISBN-13 9781839216862
Length 430 pages
Edition 1st Edition
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Author (1):
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Joakim Wassberg Joakim Wassberg
Author Profile Icon Joakim Wassberg
Joakim Wassberg
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Table of Contents (19) Chapters Close

Preface 1. Section 1: Introduction to Computer Programs and Computer Programming
2. Chapter 1: Introduction to Computer Programs FREE CHAPTER 3. Chapter 2: Introduction to Programming Languages 4. Chapter 3: Types of Applications 5. Chapter 4: Software Projects and How We Organize Our Code 6. Section 2: Constructs of a Programming Language
7. Chapter 5: Sequence – The Basic Building Block of a Computer Program 8. Chapter 6: Working with Data – Variables 9. Chapter 7: Program Control Structures 10. Chapter 8: Understanding Functions 11. Chapter 9: When Things Go Wrong – Bugs and Exceptions 12. Chapter 10: Programming Paradigms 13. Chapter 11: Programming Tools and Methodologies 14. Section 3: Best Practices for Writing High-Quality Code
15. Chapter 12: Code Quality 16. Other Books You May Enjoy Appendix A: How to Translate the Pseudocode into Real Code 1. Appendix B: Dictionary

Understanding version control systems

A version control system (VCS) is used to manage changes in documents, computer programs, or other collections of files. They are used by programmers to manage different revisions of their code.

It is possible to restore earlier reversions if needed. This makes it safer to edit files, as we always have a way for us to restore what we had if we decide that the changes we made need to be reset.

VCSs are also used so that developers can work together on the same project and, in a safe manner, work in the same source code files. Version control systems also keep track of who changed what in a document, and when the change was made.

Files that are version controlled are stored in what is called a repository. When changes are made to a file, the user of the VCS can commit these changes to the repository, and by extension of that, create a reversion point. It is at these points where the version control system takes a snapshot of all the changes...

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