A computer that has more than one processor is called:

A computer that has more than one processor is called a Multiprocessor system. This architecture allows multiple central processing units (CPUs) to work in parallel, significantly enhancing the computer's ability to execute instructions and handle multiple tasks concurrently. This design improves overall performance, speed, and efficiency, especially in demanding applications and server environments.

A Uniprocessor system has only one CPU. A Microprocessor is a single integrated circuit containing a CPU, but doesn't imply multiple processors in a system. A Minicomputer is a class of multi-user computers, defined by size and capability, not specifically by the number of processors.