注目の話題: 娘がビスコ坊やに似てると言われました; 既読ついてもう10日返事なし; ディズニーの写真見せたら

A diary of a heretic in English

No.67　11/03/28 07:54
蚤野心蔵 ( 50代 ♂ Oe38xe ) あ+あ-

【A cellphone of the fourth generation】Ⅱ

As watching a scene of phoning in a car at TV programs,plenty of people may have imagined it was a technical communication in the future.As for its size　and　quality of　sound, it was the same ones like what is called 固定電話.☎

The problem was that the　early　ones had danger of eavasdropping.In addition,a user of the early ones monopolized one frequency周波数. It meant the early ones monopolized the use of electric wave in the region,an efficiency of its use were very bad.Each of companies reached to the system of　digital　in order to solve the problem. This is a turning　point, it　means　second generation📱

Changing　the system into digital ones means data of voice is shown as numercial value数値. It compresses lots of data,so even though there are lots of users, the problems of entanglement of wires and drop of　efficiency of its use don't occur.📱

To be continued. By😁