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Programming Concepts Intermediate

What is Thread?

The smallest unit of execution within a process, allowing concurrent operations to run within a single program.

Threads share the same memory space within a process, enabling parallel execution of tasks. Multi-threading improves performance for CPU-bound tasks on multi-core processors and keeps applications responsive during I/O operations.

Challenges include race conditions (concurrent access to shared data), deadlocks (threads waiting on each other), and thread safety. Synchronization primitives (mutexes, semaphores) coordinate access. Modern approaches include async/await and actor models.

Related Terms

Queue
A data structure that follows First-In-First-Out (FIFO) ordering, where elements are added at the rear and removed from the front.
Singleton Pattern
A design pattern that restricts a class to a single instance and provides a global point of access to that instance.
Stack
A data structure that follows Last-In-First-Out (LIFO) ordering, where elements are added and removed from the same end (top).
Clean Code
Code that is easy to read, understand, and maintain — following consistent conventions, meaningful naming, and single-responsibility functions.
Closure
A function that captures and retains access to variables from its enclosing scope, even after that scope has finished executing.
Functional Programming
A programming paradigm that treats computation as the evaluation of mathematical functions, avoiding state changes and mutable data.
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