What is concurrency

Understanding about concurrency

• When we are trying to execute several tasks on a single thread, it leads to a buggy implementation since many tasks try to run simultaneously.
• With concurrency we make sure multiple tasks run concurrently simultaneously.

Do multiple tasks run parallelly

• Well kind of
  • Meaning say if there are 4 cores in the CPU, Each core can run a single task.
  • Also if the 1 core is there and has a single thread and multiple tasks are running on it, Still the co-routines are executed in such a way that it appears the tasks are executed concurrently because the co-routines do not block the main thread.

Concurrent-Tasks

• Concurrent tasks can be completely independent.
• There can be a relationship between them also in a particular order.

We use co-routines to introduce concurrency to kotlin applications