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Hi everyone, and welcome back to Geek Time. 欢迎回来《极客时间》. Hi, Brad.
Hey Lulu, how's it going?
Yeah, it's good, it’s good. So what are we gonna talk about today?
Today we're gonna be talking about the internet of things or IoT.
The internet…The IoT中文叫做物联网。internet是互联网，IoT, internet of things 是物，就是物件的物，物联网.
I mean, I have seen the definition somewhere and it seems to be referring to all the things are connected rather than the computers. Could you walk us through the basic definition of IoT?
So, basically, IoT is just a group of things that are interconnected. They can be on the internet or through their own network, but it's not computers. It's like devices that have sensors in them and software that they used to communicate.
And so it might be a button somewhere that you push and it communicates with something, or it might be a temperature sensor that we used to find out the weather in our smartphones.
So, is it like one of those, for example, if I've got like a smart fridge refrigerator, that can be part of IoT?
Right. Yeah. That's one of those IoT devices.
Emm. And IoT means they are actually able to connect with each other and what communicate?
Yeah. They basically they inter communicate on their own. When we use the internet, we go online and we look up Information, but an IoT device connects to the internet or through another network, and sends Information to a hub or to another device directly, without any human interaction necessarily.
Okay, starts to sound a bit creepy. So my refrigerator can be sending things about my home to another refrigerator, for example, your refrigerator?
Well. It's not just gonna go talk to another refrigerator. However, you know you have your phone, and you probably have an APP on your phone that you can use to connect to the refrigerator, and then look at what's inside of your refrigerator or maybe your refrigerator will send you some Information saying “you only have two eggs”, you might want to order two more or more.
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