The term concurrent user refers to more than one user utilizing a computer resource at the same time (or in the same predefined period of time). These resources include a computer network, program, file, or an entire computer system.
Commercial software may restrict the number of concurrent users depending on the type of software license purchased for the system. For instance, a license that allows 50 employees to use the software concurrently, may be more expensive than a license that allows only five.
Operating system, Operating System terms, Software license
Computer operating systems, which allow users to use system resource concurrently, are called multiuser systems.
