Looking back on DoCoMo Ketai, the 5...

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23
06

Looking back on DoCoMo Ketai, the 50X series is increasingly functional, and FOMA boosts 3G spread: ITMEDIA MOBILE 20th anniversary special project (page 1/3)

　"ITmedia Mobile" celebrated its 20th anniversary in 2021.This time, as a plan to look back on ITMEDIA Mobile's 20 years, we have picked up the main mobile phone and smartphone released by domestic careers from 2001 to 2020.The first one is NTT DOCOMO mobile phone.

　The "Shoulder Hon" 100 type, which was provided by NTT in 1985, and the Japan's first mobile phone in Japan in 1987, the TZ-802 type in Japan was a heavy and heavy terminal that could not be imagined from now on.

自動車電話を持ち出して使えるというコンセプトで3kgと非常に重く、ストラップで肩から提げて持ち運んだ「ショルダーホン」

　It became more and more small and became the prototype of the current feature phone, which was launched by the DDI Cellular Group (now KDDI) in 1989, the lightest Motorola "Micro Tack Micro Tack".HP501 (weight 305g).In 1991, NTT also launched the “Mova TZ-804 type” with a weight of 230g.Although it is weighing close to the current smartphone, the communication method at that time is analog, and only calls can be done.

ドコモケータイを振り返る　50xシリーズで高機能化が進み、FOMAが3Gの普及を後押し：ITmedia Mobile 20周年特別企画（1/3 ページ）

　It was separated from NTT and became NTT DOCOMO in 1993 that PDC digital 2G services were started.At the time of the Great Hanshin -Awaji Earthquake in 1995, there were finally signs of mobile phone spread.The PHS service was started in the same year, and the following year, a short mail was launched ahead of mobile phones.There are also e -mail terminals like ultra -small warplos, but in February 1999, docomo launched "i -mode" and released the "501i series" terminal, and then the terminal and service are high.Functionation has progressed steadily.

　When email using emoji, simple website browsing, and camera with a built -in terminal make it possible to exchange photos, the mobile phone display is larger, multicolored, and high -definition, and a large display is installed.Despite the small and portable folding shape, it becomes the mainstream.The folding model "N502IT" (NEC) equipped with a color LCD display, which appeared in 2000, was a huge hit following the monochrome spay "N502i".

　In 2001, when ZDNET MOBILE, the predecessor of ITMEDIA MOIBLE, started, the 503i Series for "I -App" was released.The biggest feature of the 503i series is that the Java application called the "I -App" is downloaded to the terminal and games and maps can be used.It is a service that leads to the current smartphone app.F (Fujitsu), P (Matsushita Telecommunications Industry), N (NEC), SO (Sony), and D (Mitsubishi Electric) have a color LCD display.

ドコモの503iシリーズ。左から「F503i」「P503i」「D503i」「N503i」「SO503i」富士通のストレートケータイ「F503i」「DoCoMo by Sony」ブランドの「SO503i」

　In the 503i second series "503is", all terminals have a folded style.The 504i series, released in 2002, has been enabled for the I -app standby screen and has expanded the function of the I -app.In addition, the 504i series supported infrared communication and was used in address information exchanges and TV remote controls.The infrared communication function is also installed in the early domestic smartphone.

　In June 2002, a mobile phone with a camera was launched for the first time in Sharp's "SH251i", and the service was launched under the name "I shot".After that, as you know, the camera will be a natural function on mobile phones and smartphones, reducing the market of compact digital cameras and lenses with lenses.

mova初のカメラ付きケータイ「SH251i」「FOMA」をメジャーにした「900iシリーズ」1|2|3次のページへ

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