Ичитарo: Жапон тіліндегі мәтін өңдегіш тарихы

Ichitaro (一太郎) is a Japanese word processor produced by JustSystems, a Japanese software company. Ichitaro occupies the second share in Japanese word processing software, behind Microsoft Word. It is one of the main products of the company. Its proprietary file extension is ". JTD". ATOK, an IME developed by JustSystems, is bundled with Ichitaro. In the DOS era, Ichitaro had a considerable market share along with other rivals. However, as Windows became dominant, the market was largely taken over by Microsoft Word.

"Taro (太郎)" was named by Kazunori Ukigawa (浮川 和宣), a founder of JustSystems. When he worked part time as a tutor, one of his learners' names was Taro. He died of sickness when Kazunori worked at the company. Taro is also a common Japanese given name used for the eldest son. Sanyo Electric already had a trademark right of the name, so JustSystems added a prefix "wikt:ichiban (Ichi)" as they hoped the software won the best.

JustSystems was founded in July 1979 by Hatsuko (初子) and Kazunori Ukigawa, and was incorporated in June 1981. Kazunori worked at a subsidiary company of Toshiba, and he was interested in Japanese language computing. Toshiba released in February 1979, the first word processor for the Japanese language, but it sold less than their business computers. He founded the company as a dealer of business computers, and they started selling Japanese language software. After the release of PC 8801, they developed an invoicing software for it, which printed out estimations and invoices in Japanese. They demonstrated it at trade fairs, and received a positive response. The jX WORD for the IBM JX was released and in 1985, jX WORD Taro was released for PC 9801. jX WORD Taro was priced at 58,000 yen, which was the middle price among Japanese word processor software, and sold 9,700 copies.

The same year, Ichitaro was released as its definite successor. Ichitaro's system disk contained ATOK 4 and a runtime version of MS DOS 2.11. It allowed users to use other MS DOS applications with Japanese language support. The first version of Ichitaro has shipped 29,000 copies. Ichitaro Ver.2 has shipped 80,000 copies. Ichitaro Ver.3 was the first version ported for other Japanese DOS platforms. It has shipped more than 300,000 copies until 1991. Total shipments of Ichitaro reached one million in November 1991. ATOK 7 was bundled with Ichitaro 4, and was available as a standalone product in 1992.

Version Release Date Notes JS WORD October 1983 For PC 100, published by ASCII under their nameJS WORD 2.0May 1984For PC 9800 series, published by ASCII jX WORD December 1984 For IBM JX series jX WORD Taro February 1985 For PC 9800 series 1 28 August 1985 Allow the use of ATOK from other applications 2 May 1986 3 June 1987 No disk copy protection from this version DRM activation implemented 24 7 February 2014 Ichitaro 2014 2=徹 (3=Tetsu) 25 6 February 2015 Ichitaro 2015. Dropped support for Windows XP 26 5 February 2016 Ichitaro 2016 27 3 February 2017 Ichitaro 2017. Dropped support for Windows Vista 28 9 February 2018 Ichitaro 2018 29 8 February 2019 Ichitaro 2019 30 7 February 2020 Ichitaro 2020. Dropped support for Windows 7 31 5 February 2021 Ichitaro 2021 32 10 February 2022 Ichitaro 2022 33 10 February 2023 Ichitaro 2023. Dropped support for Windows 7 and 8.1 34 9 February 2024 Ichitaro 2024

In 2013, Symantec revealed that Ichitaro had the potential to be targeted by trojan horse programs. A gang of Chinese hackers was widely blamed for the incident.