Multi User Operating Systems.

MULTI USER OPERATING SYSTEMS

Introduction2

Multitasking2

Types of Multi User System3

CPU Architecture4

Memory4

Data Storage Devices5

Input / Output Devices5

Softw atomic number 18 Components5

Bibliography7

Introduction

Operating organisations are the very basis of computer software programs. They exist in order for users to interact with the computers hardware. An drill would be MS- DOS. DOS so far is a single user in operation(p) frame which john only support input from one user at a time. So if more than one person needs to use a computers resources, a different direct system is needed. Hence multi user operating systems.

These are operating systems which have many users to cope the resources of a processor at the same, for example UNIX, LINUX, or CICS.

They differ from network operating systems in that the last mentioned are actually single user operating systems with, in the overall plan of the operating system, the only user organism the system administrator and all other logins just creation a program run by the administrator.

Since multi user systems share resources, such as the CPU, memory, storage and input/ output devices, as well as software applications and files, the operating system has to dress up and control the access to these resources (called scheduling), the most common way of doing this existence the Round Robin strategy where each process has a short but equal time slice. For this reason, multi user operating systems require a great deal of memory in order to work effectively.

Multitasking

A main feature of multi user systems is multi tasking. This is where the operating system provides the ability to run two or more programs at once. For example a user could be stamp and typing at the same time. In actual fact, although the system appears to be running the tasks together the processor is rapidly switching...

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