Computer Software
System software
Operating Systems
The Operating System is the term given to a software program that instructs the computer on how to carry out basic functions like loading, storing and retrieving files that are required in all types of computer programs. The Operating System also establishes an interface with the user. This master control program coordinates the activities or tasks of all other software programs in their utilisation of system resources, such as the CPU and other hardware as well as interaction with other programs.
Operating systems fall into two distinct categories:
Network Operating Systems (NOS) are loaded on servers and operated by IT (Network) administrators and Workstation Operating Systems are loaded on workstations and operated by the user.
Examples of Network Operating Systems include:
| Company Network | Operating System | |||
| Novell Inc. | NetWare | |||
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| Microsoft Corporation |
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| Sun Microsystems Inc. | Solaris | |||
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| Red Hat Software Inc. | Red Hat Linux | |||
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| Caldera Systems Inc. | OpenLinux | |||
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| The Santa Cruz Operation Inc. | SCO UnixWare Application Server | |||
Examples of Workstation Operating Systems include:
| Company Workstation | Operating System | |||
| Microsoft Corporation |
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| Sun Microsystems Inc. | Solaris | |||
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| Red Hat Software Inc. | Red Hat Linux | |||
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| The Santa Cruz Operation Inc. |
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| Apple Computer Inc. | Mac OS | |||
More information on operating systems is given in Unit 4 - Operating System Support.
