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2014年,我国部分城市开通4G移动通信业务,4G手机也纷纷上市。“4G”具体指的是什么呢?有人说,G是一个表示信息容量的单位,相当于10亿个比特,6700万个汉字,“4G”表示每秒钟可以传输相当于2.7亿个汉字的信息量,所以速度特别快,下载一部电影就是眨眼的工夫。也有人说,“4G”是手机的储存空间;还有人说它是手机的内存。其实,有些理解是错误的,此G非彼G,“4G”手机中的G,是英文Generation的首字母,是“代”的意思,4G表示第四代移动通信技术,与表示信息容量的“G”无关。
In 2014, some cities in our country opened 4G mobile communication services, and 4G mobile phones also went public. Some people say, G is a unit of information capacity, equivalent to 1 billion bits, 67 million characters, “4G” that can be transmitted per second is equivalent to 2.7 The amount of information of 100 million Chinese characters, so fast, download a movie is blink of an eye. Others say that “4G” is the phone’s storage space; others say it’s the phone’s memory. In fact, some understand is wrong, this G is not G, “4G ” in the phone G, is the first letter of the English Generation, is the meaning of “generation”, 4G said the fourth generation of mobile communication technology, and The “G” indicating the information capacity has nothing to do.