Did You Know Whats Inside Your Android Phone? - Best Free Android Apps


Thursday, July 30, 2020

Did You Know Whats Inside Your Android Phone?

Did You Know Whats Inside Your Android Phone?

You are about to enteranother dimension, one of 4G and NFC, where neighborhoodsare sealed under layers of copper and glass. You're about to enter-A phone. Hey, there. Welcome back. And this isour 20% Project,

      where we go find out aboutdifferent Google stuff that we're curious about. And in this episode,we're taking apart a phone to learnwhat's inside of it and how that stuff actuallyworks with our friend Dan. Dan works onthe Android team. And his real job is helpingdevelopers make gaming apps. But in his spare time, helikes taking apart hardware. You're a pro at teaching. And then-- I'm an amateur at breakingthings and taking things apart. All right. Let's start takingapart this Nexus 5. 

    And so when you openup any phone, will it look basically the same inside?  It'll havesimilar components. And those components will beorganized in similar ways. So you've got a display,cameras, microphones. There's acase, the battery. A SIM card slot.  Speakers. And a sensor that can tellwhether or not a phone is near your face. This is the gyroand the accelerometer. 

             They're bothsensors that are useful for playing videogames and fitness apps because they can tellyour phone's movement. There's a motherboard, which isthe main printed circuit board and does a lot ofdifferent stuff. A lot of phones alsohave daughter boards, which are an extensionof the motherboard and can be all differentshapes and sizes Then there'salso the fatherboard. Is there a fatherboard? No, I justmade that one up. Testing ya. 

              Almost everyuseful component you would see on the phoneis actually on this board. It looks like there'slittle neighborhoods on the board, likethis is separated-- There are.  That's a little separated. t's like suburbia. Absolutely Yeah, it's like lookingout from a plane window and seeing theselittle separate areas. Of course.  So are theyactually separate? They are actualneighborhoods. So that's a great way ofdescribing it actually. (WHISPERING) Yes! And you can seeboth sides of the boards have different neighborhoods.  For somethinglike Project Ara that has all the differentcomponents that you just slot into your phone,is that like making one of those littleneighborhoods just independent? Absolutely. 

             And when you look atthis, you can already see kind of like whatProject Ara is trying to do. So one thing we'reunable to take apart is this front display. And that's because thisis all glued together. But Dan explained that ifwe were able to take it apart, there'd be all these differentlayers of glass and insulating material and protective coating. And sandwichedbetween those layers are two very important layers. And you have these superthin copper wires, actually thinner than a human hair. There's a layer of wiresthat are horizontal and carry an electric current. And they're called thedriving lines layer. And then there'sthe layer of lines that are vertical that arecalled the sensing line layers. 

              And together,they form a grid. And this grid hasan electric charge. So basically, when your fingersget close to the screen, because they're goodconductors of electricity, they disrupt thegrid's electric charge. And the processorpicks up on that. And it plots iton an x-y access. So it can figure out exactlywhere you're touching it and can then routethat information wherever it needs to go. A phone is a reallysophisticated computer combined with an enormousnumber of radios. Not like the radio thatyou listen to in your car, but like a two-way radio. Like walkie talkies. So your phone can transmitdata or it can receive it. So your phone hasa cell phone radio. And that communicateswith a cell tower whenever you're making a call. 

Inside Android Phone?

           Then it's got a Wi-Fi radio. And that's goodfor downloading big files or streaming video. It actually uses less batterybecause it has less distance to go. It has a Bluetooth radiofor connecting to, maybe, speakers in your living room.  And if you've evertapped your phone to pay, that's going to beusing your NFC radio. It stands for NearField Communication. Because it can onlytravel like an inch and a half in range. And last butnot least, there's GPS, which, of course, is reallyuseful for real-time mapping and in case you lose your phone.  And all thoseradios actually make it pretty trickyand interesting to design phones because youcan't have them interfering with each other. And they're all packed inthere super close together. Dan, what are you doing? I'm putting it backtogether, of course. How's it going? Well, seeing if I can. It's going pretty well. 

Smartphone, Digital Camera, Camera, App

               So, yeah, just youraverage Friday. What's your predictionfor phones in the future? This year, we'reseeing a lot of cool stuff in terms of what we'redoing with Project Cardboard and people usingthese phones as a basis for a virtual reality player. So you want to go andbe somewhere else. You want to seeit in Street View, but you want tosee it in 3D, you can use this with a couple oflenses and a piece of cardboard to be there. And I think that's justscratching the surface of what we're going to see interms of phone technology and how it can provide youthat sensory experience. So what did you learnabout phones from all of this? It's a lot morefun when you actually know what's inside thethings you use every day. 

         Yeah, it wasinteresting to learn how all these differentthings are laid out together. So there's probably asmuch, if not even more, design on theinside of the phone than there is on the outside. We wanted to thank youfor taking the time to do this today. So you'll hang tight. And I'll go get something. Since Dan broke apart aphone for us, as a thank-you, we decided to give himsomething else to break apart. Here we go. OK. [BANG] Whew. [BANG] That was good. [INAUDIBLE] [SINGING NONSENSE SOUNDS]  NAT: Hey, Lo. Oh, hey, So I think this is the end of the episode. So I was just picturing thatwe'd just walk off camera now. Oh, well, I'm gladyou called me and told me. Because I don't know howelse I would have found out All right. So, see ya. OK. Bye.  

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