A mainframe computer is a large, powerful computer system capable of supporting hundreds of users simultaneously. Mainframes are typically used for critical applications by large organizations.
A 'Number Cruncher' refers to both a person who spends much time calculating and analyzing numerical data as well as a computer specifically designed to perform extensive numerical calculations.
Parallel processing refers to the simultaneous performance of two or more tasks by a computer, which increases processing speed and efficiency, allowing for more complex computations to be done in a shorter amount of time.
