What is Computer Science?

Computer Science is the study of computation, information, and automation. It spans theoretical disciplines to applied ones.

Core Areas

• Algorithms — step-by-step procedures
• Data Structures — organizing data
• Programming — writing code
• Networking — connecting computers
• Databases — storing data

Syntax

COMPUTER-SCIENCE

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# Algorithms
- Sorting: QuickSort, MergeSort
- Searching: Binary Search, BFS, DFS

# Data Structures
- Arrays, Linked Lists
- Trees, Graphs
- Hash Tables, Stacks, Queues

Binary Number System

PYTHON

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# Decimal to Binary
def to_binary(n):
    if n == 0:
        return "0"
    result = ""
    while n > 0:
        result = str(n % 2) + result
        n //= 2
    return result

# Binary to Decimal
def to_decimal(binary):
    return int(binary, 2)

print(f"42 in binary: {to_binary(42)}")
print(f"1010 in decimal: {to_decimal('1010')}")

Try It Yourself

Practice

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Exercise

What are the 5 core areas of Computer Science?

Answer

Algorithms, Data Structures, Programming, Networking, Databases.

Quick Quiz

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What does CS study?

Cooking

Computation and information

Music

Sports

Computer Science studies computation, information, and automation.

Retry Quiz

Interview Questions

What is the difference between Computer Science and Programming?

CS is the theoretical study of computation. Programming is the practical application of writing code to solve problems.

Tutorial Complete

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