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电子邮件可以说是Internet上最古老的功能,也可能是最实用的功能,上网之后,我们最离不开的功能也就是E-mail了。古老的E-mail只能传送文本文件,随之技术的不断进步,人们又给E-mail赋予新的生命,既可以传送文本,也可以传送图像、声音、动画,其至还可以传送录像。而Internet上的其他功能,例如:WWW、Usenet、FTP等都可以利用E-mail实现。现在人们谈论最多的“推送(push)”技术也是起源于E-mail。 通常WWW、Usenet、FTP等网络新功能都有一个共同的特点:都是交互进行的,每当按一个按钮、提出一个请求,都需要等待对方应答之后再进行下一步操作。如果网络传输速度比较快,交互功能最适合用户的操作习惯。但如果网络比
E-mail can be said that the oldest Internet features, it may be the most practical features, the Internet, we can not do without the function that is E-mail. Ancient E-mail can only send text files, with the continuous improvement of technology, people give E-mail a new life, you can send text, you can also send images, sound, animation, which can also send video. The Internet and other functions, such as: WWW, Usenet, FTP, etc. can be achieved using E-mail. Now people talk about the most “push” (push) technology also originated in E-mail. Usually WWW, Usenet, FTP and other new network features have a common characteristic: are interactive, each time a button is pressed to make a request, you need to wait for the other party to answer before proceeding to the next step. If the network transmission speed is faster, interactive features most suitable for the user’s operating habits. But if the network than