Multi-user is a term that defines an operating system or application software that allows concurrent access by multiple users of a computer. An operating system (commonly abbreviated OS and O/S) is the software component of a Computer system that is responsible for the management and coordination Application software is a subclass of Computer software that employs the capabilities of a computer directly and thoroughly to a task that the user wishes to perform Users in a Computing context refers to one who uses a computer system A computer is a Machine that manipulates data according to a list of instructions. Time-sharing systems are multi-user systems. Time-sharing refers to sharing a computing resource among many users by multitasking. 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. Batch processing is execution of a series of programs (" jobs quot on a Computer without human interaction Mainframes (often colloquially referred to as Big Iron) are Computers used mainly by large organizations for critical applications typically bulk data In Computing, input/output, or I/O, refers to the communication between an Information processing system (such as a Computer) and the outside However, the term "multitasking" is more common in this context. In computing Multitasking is a method by which multiple tasks also known as processes, share common processing resources such as a CPU.
An example is a Unix server where multiple remote users have access (such as via Secure Shell) to the Unix shell prompt at the same time. Unix (officially trademarked as UNIX, sometimes also written as Unix with Small caps) is a computer Secure Shell or SSH is a Network protocol that allows data to be exchanged using a Secure channel between two networked devices A Unix shell, is a command line shell that provides the traditional User interface for the Unix Operating system and for Unix-like Another example uses multiple X Window sessions spread across multiple terminals powered by a single machine - this is an example of the use of thin client. A thin client (sometimes also called a lean or slim client) is a client computer or client software in Client-server architecture networks
Management systems are implicitly designed to be used by multiple users, typically one system administrator or more and an end-user community. A management system is the framework of processes and Procedures used to ensure that an Organization can fulfill all tasks required to achieve its objectives A system administrator, systems administrator, or sysadmin, is a person employed to maintain and operate a Computer system and/or network. The end-user is a p concept in Software engineering, referring to an Abstraction of the group of persons who will ultimately operate a piece of software
The complementary term, single-user, is most commonly used when talking about an operating system being usable only by one person at a time, or in reference to a single-user software license agreement. Multi-user operating systems such as Unix sometimes have a single user mode available for emergency maintenance. Single user mode is a mode in which a Multiuser computer Operating system boots into a single Superuser.
See also
External links
- Interix in a Multi-User Windows TSE Environment paper about the Unix multi-user model and MS-Windows NT TSE
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