Which one allow two or more users to run programs at the same time
Multiuser one allow two or more users to run programs at the same time.
multi-user: Allows two or more users to run programs at the same time. Some operating systems permit hundreds or even thousands of concurrent users. multiprocessing: Supports running a program on more than one CPU. multitasking: Allows more than one program to run concurrently.
Multi-user software is software that allows access by multiple users of a computer. ... Most batch processing systems for mainframe computers may also be considered "multi-user", to avoid leaving the CPU idle while it waits for I/O operations to complete. However, the term "multitasking" is more common in this context.
A multi-user operating system has been designed for more than one user to access the computer at the same or different time. ... Most batch processing systems for the mainframe computers can also be considered as 'multi user.'