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已设计出的一种利用个人电脑(PC)并配装相应软件的图文电视附加卡,成为一种实用的低成本的图文电视终端。这篇文章就叙述其硬件设计和软件开发。
A teletext add-in card that has been designed using a personal computer (PC) and equipped with appropriate software has become a practical low-cost teletext terminal. This article describes its hardware design and software development.