What are some examples of IoT (Internet of Things)? Check all that apply.
Teachers who post assignments for their students on the school website
Thermostats that turn off the air conditioning when you leave the room
Refrigerators that keep track of the food and notify you when to buy more
An online car dealership that can provide complete car history using the vehicle identification number
The correct answer and explanation is :
The correct examples of Internet of Things (IoT) are:
- Thermostats that turn off the air conditioning when you leave the room
- Refrigerators that keep track of the food and notify you when to buy more
Explanation:
IoT refers to the network of physical objects or devices that are connected to the internet, allowing them to collect, exchange, and interact with data without human intervention. Here’s a breakdown of the examples provided:
- Teachers who post assignments for their students on the school website:
- Not an IoT example. This is a typical web application where humans interact with the internet to upload content. While the internet is used, it doesn’t involve physical devices collecting or sharing data autonomously. This doesn’t fall under the IoT category.
- Thermostats that turn off the air conditioning when you leave the room:
- IoT example. Modern smart thermostats, like Nest or Ecobee, are classic IoT devices. They connect to the internet and use sensors (such as motion detectors) to monitor a room’s activity. When you leave, the thermostat automatically adjusts the temperature, either turning off the air conditioning or heating to save energy. This device interacts with the environment and uses internet connectivity to optimize energy use, a key feature of IoT devices.
- Refrigerators that keep track of the food and notify you when to buy more:
- IoT example. These are also known as “smart refrigerators.” These devices are connected to the internet, and they can track inventory (e.g., expiration dates, quantities, or types of food). They may even notify you via a smartphone app when you’re running low on an item or when food is about to expire. The ability of the refrigerator to monitor its contents and provide real-time data makes it an IoT device.
- An online car dealership that can provide complete car history using the vehicle identification number (VIN):
- Not an IoT example. This is a service based on the internet, but it doesn’t involve a connected physical object. A VIN lookup is typically a database query rather than an autonomous interaction between physical devices. Thus, it’s not part of the IoT.
In summary, IoT devices connect to the internet, collect and share data autonomously, and interact with the physical environment. Examples like smart thermostats and refrigerators fit this definition.