Output devices and their uses：练习题

A architect is working on a computer-aided design (CAD) project and needs to produce a large-scale, high-quality technical drawing on a single sheet of A0 paper.

Which output device is most appropriate for this task?

In a computerized control system for a modern greenhouse, which device would be responsible for performing a physical action, such as opening a window or turning on a heater, based on computer instructions?

A logistics company requires an output device to produce multi-part continuous stationery invoices in a dusty warehouse environment where maintenance and operating costs must be kept low. Which printer would be most suitable, and what is the primary reason for this choice?

A control system in a smart building needs to physically open a heavy motorized gate when a car is detected. Which output device is used to create this physical movement?

A control system in a modern office uses a device to physically open a heavy ventilation hatch when the temperature rises too high. Which type of output device is used to create this physical movement?

A company wishes to reduce the noise level in its open-plan office. Name a type of printer that would be least suitable for this environment due to its high noise output and give one typical use for this device.

Identify two advantages of using a laser printer instead of an inkjet printer in a busy office environment where many documents are printed daily.

State two specific ways 3D printers are used in the medical industry and explain the benefit of using this technology over traditional manufacturing for one of them.

A smart home system uses various devices to monitor and control the environment.

(a) Identify the specific input device used to detect the temperature of a room and explain why this device produces analogue data.
(b) The system needs to physically turn on a motorized window blind when the room gets too hot. Identify the output device responsible for this physical movement and state its primary purpose in a control system.

In an automated water management system, a microprocessor controls the flow of water through pipes to maintain a constant level in a reservoir. The system uses various actuators to achieve this.

(a) Define the term actuator and explain its role in a control system.
(b) Describe how the microprocessor uses a signal to operate a valve actuator, including the necessity of any data conversion.
(c) Give two reasons why an output device like an actuator is used here instead of a computer monitor.