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For those of you involved in embedded systems development: which of the following types of operating system are you planning to use in your next project?
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In-house developed OS
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 13%
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Commercial proprietary
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 15%
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Linux
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 38%
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Android
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 12%
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My project doesn't need an OS
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 23%
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Visit The Poll Archives
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Server glitch halts T-Mobile network
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MUNICH — During the afternoon and evening hours of Tuesday (April 22), large parts of T-Mobile's German mobile network were unavailable. The reason was a server failure.
The problem started about 16:00 local time and affected most mobile data and speech connections. Phone calls, texting and data transfer were not possible over T-Mobile's network; millions of subscribers found them cut off their mobile communication connections. Only at 22:00 T-Mobile announced that the network should have returned to normal operation.
The reason for the glitch was identified as the Home Location Register, a data base that correlates individual SIM cards and phone numbers. According to T-Mobile, two of the three server computers running the data base have failed; what exactly caused the problem is yet unclear. It took a long time to get hold of the system engineers to locate and eliminate the server problem: The respective experts could not be reached via their mobile phone connection.
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