Some examples of systems with low architectural flexibility are:
1. Legacy software systems that have been designed and implemented using outdated technology and programming languages.
2. Monolithic systems that are tightly coupled and cannot be easily modified without affecting other parts of the system.
3. Closed-source systems that do not allow external modification or customization.
4. Systems that have a rigid architecture or framework that restricts the types of changes that can be made.
5. Hardware-based systems, such as embedded systems, that have limited processing power and memory and cannot be easily upgraded or modified.
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