Git essentials: Get started with Git version control

This article introduces you to Git, including how to install the necessary software to access Git servers where your software project will be stored.

Version control concepts

To understand Git and the concept of version control, looking at version control from an historical perspective is helpful. There have been three generations of version control software.

The first generation

The first generation was very simple. Developers worked on the same physical system and “checked out” one file at a time.

This generation of version control software made use of a technique called file locking. When a developer checked out a file, it was locked so no other developer could edit the file. Figure 1 illustrates the concept of this type of version control.

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