The Computing Progression Pathways suggests that at the purple level, on the theme of Hardware & Processing, a student should demonstrate that he/she:

• Recognises and understands the function of the main internal parts of basic computer architecture. (Abstraction)
• Understands the concepts behind the fetch-execute cycle. (Abstraction) (Algorithmic Thinking)
• Knows that there is a range of operating systems and application software for the same hardware. (Abstraction)

The following link to cs4fn articles that illustrate Hardware & Processing – Purple Level

• An operating system is the software that has direct control of the hardware that applications are to run on.

  Smart Phones, Operating Systems and Google Android [cs4fn-link]

More of our resources, including linked computing ‘story’ booklets can be found in our resources section. You may also want to look at cs4fn’s teacher resources or browse the latest cs4fn magazine.