1. Section one revision:1. Computer Systems To be able to Identify and describe computer systems To demonstrate an understanding of the Central Processing Unit (CPU) To be able to explain how performance is affected by functions

2. To be able to describe the functions of different types of memory To be able to describe the functional characteristics of secondary storage technologies To be able to demonstrate an understanding of human-computer interaction Section one revision:1. Computer Systems

3. To understand the purpose of CPU, input devices, output devices, backing storage, data bus, address bus, ports and connectivity To recognise the components of the CPU: controller, arithmetic/logic unit (ALU), internal memory, registers, buses To be able to explain the role of the CPU in fetching and executing instructions stored in memory Section one revision:1. Computer Systems

4. Be able to explain the effect of cache, speed of clock, number of cores, types of processors Know the difference between Random Access Memory (RAM), Read Only Memory (ROM), flash memory, cache memory Be able to describe the functional characteristics: suitability, capacity, durability, portability, speed Explain technologies such as: optical, magnetic, solid state, storage in the cloud Section one revision:1. Computer Systems