Session 1.1 - Overview and Modelling

Learning Objectives

• Explain what a computer system is and how its parts transform inputs into outputs.

• Identify the roles of the CPU, memory, storage, I/O devices and system buses.
• Describe how the CPI executes instructions through the fetch, decode, and execute cycle.
• Introduce simple ways to measure the efficiency and speed of algorithms without using detailed Big O Notation.
• Practice expressing simple processes in pseudo code and reasoning about their efficiency in clear everyday language.