Input vs Output Device Identification

A computer hardware input device allows users to send data or commands to the computer. Conversely, an output device displays or presents information processed by the computer.

Device Analysis

• VDU (Visual Display Unit): This is commonly known as a monitor. It displays information from the computer, making it an output device.
• Speech synthesiser: This device converts text or data into spoken words. It presents information audibly, classifying it as an output device.
• Scanners: A scanner captures images or documents and converts them into a digital format that the computer can understand and process. This process involves sending information *to* the computer, making it a hardware input device.
• Plotters: These devices are used to draw vector graphics, charts, or diagrams on paper or other materials. They present information graphically, functioning as an output device.

Conclusion on Hardware Input Device

Based on the analysis, scanners are the hardware devices among the options that facilitate sending data into the computer system.