Topic 2

Click on the Topic code (e.g. 2.1.1) to download the class slideshow on that topic:

2.1 – Computer organization (HL & SL)

Computer Architecture
2.1.1Outline 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 CPU2.1.1 BBC link

Video 2

2.1.2Describe primary memory. Distinguish between random access memory (RAM) and read-only memory (ROM), and their use in primary memory2.1.2BBC link
2.1.3Explain the use of cache memory2.1.3BBC link
2.1.4Explain the machine instruction cycle2.1.4Simulation
Secondary memory
2.1.5Identify the need for persistent storage2.1.5 BBC link
Operating systems and application systems
2.1.6Describe the main functions of an operating system2.1.6 BBC Link
2.1.7Outline the use of a range of application software2.1.7 BBC Link
2.1.8Identify common features of applications2.1.8
Binary representation
2.1.9Define the terms: bit, byte, binary, denary/decimal, hexadecimal2.1.9 BBC Link
2.1.10Outline the way in which data is represented in the computer2.1.10 BBC Link
Simple logic gates
2.1.11Define the Boolean operators: AND, OR, NOT, NAND, NOR and XOR2.1.11 BBC Link
2.1.12Construct truth tables using the above operators2.1.12
2.1.13Construct a logic diagram using AND, OR, NOT, NAND, NOR and XOR gates2.1.13 Logicly