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Introduction to Data Structures
In computer science, a data structure is a way of organizing and storing data in a computer so
that it can be accessed and used efficiently
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Real-Life Examples of Data Structures

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Arrays: An array is a collection of elements of the same type that are stored in
contiguous memory locations
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Linked Lists: A linked list is a collection of nodes that contain data and a reference to
the next node in the sequence
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Trees: A tree is a hierarchical data structure consisting of nodes that are connected
by edges
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Hash Tables: A hash table is a data structure that maps keys to values using a hash
function
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Understanding data structures is crucial for developing efficient algorithms and software
applications
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Data refers to quantities, characters, or symbols that can be stored, transmitted, and recorded
on magnetic, optical, or mechanical media in the form of electrical signals
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So I can say that these are my data
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There is a distinction between data and information, and it is a topic that often causes
confusion
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When I say just a collection of characters like this:
If I write a collection of symbols like this: ∑x, then this is just data

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