Central Processing Unit and Memory

What this topic covers

Candidates should be able to list the components of the CPU (Arithmetic and Logic Unit, Control Unit, and Registers) and explain their functions. They should distinguish between Primary and Secondary Memory (Storage) units, list components of Primary Memory (Random Access Memory, Read Only Memory), and explain their uses and differences. Additionally, candidates should explain the functions of secondary (auxiliary) storages, list different types, give examples (Floppy disks, magnetic tape, hard disks, compact disk, Digital Video Disk, USB), carry out comparative analysis of auxiliary storage devices in respect of size, speed, cost, and technology (access mode, component), and list different units by which storage is measured and their relationships (bits, bytes, nibbles, words, kilobytes, megabytes, gigabytes, terabytes).