What limits the functionality of an embedded system compared to a general-purpose computer?

An embedded system is designed to perform specific tasks within a larger system and is often dedicated to that purpose. This specialization generally results in a narrower range of functionality compared to a general-purpose computer, which can run a variety of software applications and handle diverse tasks.

Because embedded systems are tailored for particular functions, they typically operate within fixed parameters and constraints, allowing for optimization in terms of performance, power consumption, and size. This specialization means that the programming and operational capabilities are limited compared to a general-purpose computer that can be adapted for various uses through different software.

In contrast, the other choices highlight aspects that do not align with the inherent limitations of embedded systems. For instance, greater flexibility in programming and general-purpose software imply a capacity for broader applications, which is characteristic of general-purpose computers rather than embedded systems. Higher processing speed may not be relevant to their limited functionality; embedded systems are often designed to efficiently execute specific tasks rather than to achieve maximum processing power.