Smart phones have brought a lot of convenience to our lives. It can shop online like a computer. I remember last year, the teacher asked us to buy a book. Dad went to several bookstores nearby and found nothing. He had to drive for half an hour to the Xinhua Bookstore in the west of the city to buy it. It took a whole afternoon to go back and forth. This year, my mother installed Alipay on her smartphone and clicked Taobao several times. Many books are on display in front of us, and the prices are also discounted! I got some brand-new books the next day without leaving home. It's really convenient and affordable! Besides shopping, mobile phones can also show us the way. This summer, I reported on the Internet that I attended the freestyle training class in Bao Yugang Swimming Pool, but my mother and I haven't been to the swimming pool yet, and we don't know the specific location, except that it is near the intersection of Tianmushan College. After we got off at the intersection of College by bus, we walked along College Road for more than ten minutes without the sign of swimming pool. At this time, my mother thought of the mobile phone and took it out to look for the map, only to know that we were going in the wrong direction and going further and further. In fact, it is quite close to the place where we got off. Thanks to this smart phone, it would really be a "world of difference".
Smartphones make our communication more convenient. It can chat online like a computer, but it is more convenient than a computer because it can communicate with each other anytime and anywhere. In the "hand in hand" activity organized by the school, I met Jiang Dingrou from Fengshuling Primary School in Chun 'an. Usually only through letters, slow, lack of color, because letters only have black handwriting. I learned her QQ number this year and chatted online with my mother's smartphone. We finally saw each other's voices and smiles. After that, we often talk about the study and interesting things in our class through smart phones in our spare time. Two people are often "moved" by each other and laugh. In June this year, my six-year-old cousin, who is far away from home, participated in the martial arts performance of the District Children's Group and won the Excellence Award. At the moment when she received the award, my mother and I were on the way, and my mother had good news from her on her smartphone. There will be a video soon. Show it to me in an orderly way. Although hundreds of miles apart, we shared the joy of success together at the first time.
Of course, the development of smart phones will be broader in the future. Not only personal communication, information management, schedule, task arrangement, multimedia application, web browsing, etc. , such as: stock, news, weather, traffic, goods, application download, music picture download, etc. It will also be an important means of "smart city" and "smart family". Realizing wireless synchronization can release all the functions of smart phones, and make a mobile phone a time management tool, a mobile office platform, and remotely control the TV, rice cooker, air conditioner and washing machine at home. It's really good to think about trivial things in family life, such as washing and cooking, all done by mobile phone! According to my father, smart phones have been used in the military fields of various countries. Such as taking photos, positioning and tracking, inertial sensing, Bluetooth signal, electronic compass and other functions. Smart phones can be used for wireless remote control, that is, through the wireless signals of smart phones, you can remotely control your own micro drones and robots, and you can also take over other drones and robots to complete reconnaissance and monitoring tasks, and watch the video images taken by drones in real time on the display screen. It can also be used for battlefield communication and reconnaissance as a battlefield situation awareness terminal. ...