The estimates are based on reading information, such as in emails, text messages, on the internet or in publications, as well as what we see and hear on the television and radio.

这些估计数值依据的是阅读信息，比如在网上或出版物上阅读电子邮件、文本信息，以及我们在电视或收音机上看见或听到的信息。

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When he saw that the internet was switching from a text-based to a graphical medium, “I sensed that everything was going to change, ” he says.

当他看到互联网正从文本格式向形象生动的媒体转变时，“我感觉到这一切就要改变，”他说。

youdao

When he saw that the internet was switching from a text-based to a graphical medium, “I sensed that everything was going to change,” he says.

当他看到互联网正从文本格式向形象生动的媒体转变时，“我感觉到这一切就要改变，”他说。

youdao

"Messages", an internet-based audio, text, and video conferencing application that is included with Macs, has high-quality video and frame rate capabilities and is ideal for people who use sign language to communicate.

BBC: Speeding up work for people with disabilities

In 2008, the company launched YY, a voice-based gaming communications service, which enabled gamers to voice chat over the Internet and text chat in real-time while slaying monsters or coordinating gaming missions.

FORBES: YY.com: China's Unique Real-Time Voice And Video Service With A Virtual Goods Twist

Carrier text services are under attack by free texting services offered by Apple, Blackberry, and various Internet-based providers (free because the bandwidth needed to enable texting is minimal).

FORBES: Verizon Makes Wireless Pricing Rational