Click on the Topic code (e.g. 2.1.1) to download the class slideshow on that topic:
2.1 – Computer organization (HL & SL)
| Point | Description | More | |
| Computer Architecture | |||
| 2.1.1 | Outline the architecture of the central processing unit (CPU) and the functions of the arithmetic logic unit (ALU) and the control unit (CU) and the registers within the CPU | 2.1.1 | BBC link |
| 2.1.2 | Describe primary memory. Distinguish between random access memory (RAM) and read-only memory (ROM), and their use in primary memory | 2.1.2 | BBC link |
| 2.1.3 | Explain the use of cache memory | 2.1.3 | BBC link |
| 2.1.4 | Explain the machine instruction cycle | 2.1.4 | Simulation |
| Secondary memory | |||
| 2.1.5 | Identify the need for persistent storage | 2.1.5 | BBC link |
| Operating systems and application systems | |||
| 2.1.6 | Describe the main functions of an operating system | 2.1.6 | BBC Link |
| 2.1.7 | Outline the use of a range of application software | 2.1.7 | BBC Link |
| 2.1.8 | Identify common features of applications | 2.1.8 | |
| Binary representation | |||
| 2.1.9 | Define the terms: bit, byte, binary, denary/decimal, hexadecimal | 2.1.9 | BBC Link |
| 2.1.10 | Outline the way in which data is represented in the computer | 2.1.10 | BBC Link |
| Simple logic gates | |||
| 2.1.11 | Define the Boolean operators: AND, OR, NOT, NAND, NOR and XOR | 2.1.11 | BBC Link |
| 2.1.12 | Construct truth tables using the above operators | 2.1.12 | |
| 2.1.13 | Construct a logic diagram using AND, OR, NOT, NAND, NOR and XOR gates | 2.1.13 | Logicly |