Operating Systems Used for PC-based Control

11/14/2002


Operating Systems Used for PC-based Control
(% of respondents)

Present

In three years

Standard Windows NT

76.2%

8.9%

Windows NT w/extension

19.5%

29.1%

Windows CE

6.5%

22.1%

MS-DOS

23.4%

8.0%

QNX

5.2%

4.5%

VxWorks

3.5%

5.5%

Unix

8.7%

7.3%

Linux

3.0%

16.6%

Source: Control Engineering with data from IMS Research, 2001

Though Microsoft Windows NT is established as the dominant operating system for PC-based control, reliability concerns have led some users to seek alternative systems, according to ''The European & North American Markets for PC-Based Control Software'' by Intex Management Services Ltd. (IMS, Wellingborough, Northants, England; Austin, TX). The study found that NT will still dominate, but CE and Linux will begin to challenge it, especially in embedded systems.





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