(1) Teletext and Videotext are two examples of this technology in its purest form, ie no paper.

(2) Minitel succeeded Videotext as online service making online purchases, check share market, search telephone directory and could even chat.

(3) Those are two powerful reasons why every text-based and still-picture-based interactive experiment like videotext has failed in the past.

(4) Today there have been many OA systems for example desktop publishing video conference videotext and so on.

(5) But through the analysis of the data model for activity-based, the author found that the current models has some drawbacks on the dynamic character, videotext and statistic analysis and so on.

(6) Furthermore, the data are also available on a special free telephone number and on videotext system.

(7) After several editions, it become the most popular exploiture flat by improving a lot in videotext programme.