In a single processor system only one process can run at a time other processes must wait until the cpu becomes free it means that no more than a process can run in a single processor system.
What Is A Single Processor System?
A computer system that have only one processor or a processor without a dual technology is called a single processor system. Its not only physically single but also technically a single processor.
A single processor is one which the system has single CPU.In a single processor system there will never be more than one running process.If there are more processes,the rest will have to wait until the CPU is free.
On a single-processor system, there is only one CPU that performs all the activities in the computer system(such as personal computers PCs)
A single-core processor is a microprocessor with a single core on a chip, running a single thread at any one time. The term became common after the emergence of multi-core processors (which have several independent processors on a singlechip) to distinguish non-multi-core designs. For more info get help at CodeAvail- Online Computer Science Assignment
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A computer system which contain only one processor is called single processor system