(a) (i) In what ways does a typical embedded computer system differ from a general purpose PC or laptop? (ii) Give an example of a sensor that might be connected to an embedded system. (iii) Explain how the value of a memory-mapped register can be updated using C code. (iv) Explain the purpose of the KL25Z GPIO registers PDOR and PDDR. (v) On the KL25Z, all the I/O pins can be used for digital I/O (using a GPIO peripheral). Explain how it is also possible to use the pins for other peripherals