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Britain's Federation of the Electronics Industry has posted a page on the embedded chip problem. It's a comprehensive list.
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WHERE THEY ARE TO BE FOUND:
COMMUNICATIONS SYSTEMS
Telephony and data
BUILDING MANAGEMENT SYSTEMS
Heating, lighting and ventilation
Building monitoring, security and alarms
Lifts [elevators]
PLANTS
Environmental monitoring
Process equipment, production lines
Products
WHAT TYPES OF FAILURE CAN OCCUR:
Maintenance interval of obsolescence errors
Logic errors (minus quantities)
Unpredictable results of data manipulation
Total equipment failure
These systems do not always fail-safe
WHAT ARE THE RISKS:
SAFETY
Medical equipment
Security system failures
Non-functioning alarms or monitoring equipment
Out of control processes
WASTAGE
Work in process
Temperature controlled materials
Communications failures
Heating and cooling system failures
Extended plant shutdowns
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