Data Abstraction is a fundamental concept in computer science that simplifies complex data by hiding unnecessary details. It allows programmers to focus on high-level operations without worrying about the underlying complexities. For example, when using a database, a user can retrieve information without needing to understand how the data is stored or managed. This approach enhances efficiency and promotes better organization in software development. By using abstract data types, developers can create models that represent real-world entities while concealing the implementation specifics. This leads to cleaner code and easier maintenance, as changes to the underlying data structure do not affect the overall functionality.