What is Parallel Computing and Why Use Parallel Computing?

Serial Computing: 

In Serial Computing, problem is broken down into instructions that are execute on single processor one at time.

Parallel Computing: 

In Parallel Computing, problem is broken down into discrete parts. These parts are further broken down into instructions execute sequentially. Ultimately, Discrete parts can execute concurrently on different processor.

Advantages : 

• SAVE TIME AND/OR MONEY
• as cheap, commodity components can be used
• SOLVE MORE COMPLEX PROBLEMS
• as no limiting computing like traditional
• PROVIDE CONCURRENCY
• as we use multiple processor
• TAKE ADVANTAGE OF NON-LOCAL RESOURCES
• by wide area network
• MAKE BETTER USE OF UNDERLYING PARALLEL HARDWARE
• as modern laptops also based on parallel architecture