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______________________________ are software programs designed specifically to allow users to easily view the various documents and data sources available on the Internet.
Node Class
A basic structure in computer science that contains data and also may link to other nodes, typically used in linked lists and tree structures.
Empty List
A list data structure that contains no elements, often used as an initial state for collection-based operations.
Reference Instance Variable
A variable in object-oriented programming that holds the reference to an instance of an object rather than the object itself.
Logic Error
A mistake in a program's source code that results in incorrect or unintended behavior, usually difficult to detect because the program can still run.
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