Sensors and Actuators Sensors: detect and measure physical parameters (e.g. temperature, light, motion). Actuators: perform actions based on sensor data […]

Definition Cloud computing is the delivery of computing services over the internet, allowing users to access and use resources on […]

Processing Devices There are several types of computer processing units, including: Central Processing Unit (CPU): the primary processing device that […]

Input Devices Keyboard: An input device made up mostly of letters and numbers, used to type data into the computer […]

Introduction Human beings use a number system consisting of different digits (0–9), which corresponds to the number of fingers we […]

Overview Computer hardware can be classified into four broad categories based on the function each component performs. 1. Input Devices […]

The four-level model of information systems in an organization: Transaction Processing, Management Information, Decision Support and Executive Information Systems.

What an information system is, its five core components, and how information flows through the management levels of an organization.

The difference between modelling and simulation systems, their advantages and disadvantages, and how what-if analysis works in a spreadsheet.

The difference between monitoring systems, which observe and record data, and control systems, which actively change the state of a system through actuators.