What are types of operating systems

Types of operating systems

Operating systems can be classified according to which computer classes they have been designed for. In the case of UNIX / Linux, however, the division is difficult, since many distributions can be used as both client and server operating systems.

Client operating systems

Windows XP, Windows 2000, Windows NT or Mac OS X belong in this area.

Server operating systems

Windows 2003 Server, z / OS, Mac OS X Server belong in this area.

Fig. 6: Installation of server operating systems (Hansen, Neumann, 2001, p. 986)

While Windows is developed and sold only by Microsoft and Mac OS X only by Apple, there are various Linux companies that deliver their so-called distributions. The differences are mainly in the scope of the application software supplied and the support offered. In UNIX one speaks of derivatives.

Another very important differentiating criterion for operating systems is proprietary. Proprietary operating systems can only be used on the hardware of a specific manufacturer. Examples of this are the operating systems from Microsoft and Apple. In contrast, open operating systems can be used on different hardware, such as Unix or Linux.

Open operating systems are characterized by the following properties (Stahlknecht & Hasenkamp, ​​2005, p. 76 ff):
portability: Transferability to another system environment (hardware, operating system)
Interoperability: Can be used in any, especially heterogeneous computer networks
Scalability: Can be used on computers of all sizes