viewdata

Back in the 1980s, before the internet became part of daily life, there was viewdata. Imagine a world where you could get information like phone numbers, travel details, news, or shopping lists through a screen linked to a telephone line. That was viewdata. It was an early interactive online service, long before most people used the web. You can think of it as a step toward later digital services, giving people a simple visual way to look up information. Different countries had their own versions; in the UK, one well-known system was Prestel, and in Canada, there was Telidon.

Viewdata refers to an early interactive information system developed in the 1970s and used widely in the 1980s. It let people access information stored on a central computer through a telephone line, often by using a modified television set or a dedicated terminal. Unlike ordinary broadcast television, viewdata was interactive; users could ask for specific pages of information by entering codes on a keypad or keyboard.

The system showed information on a screen, often as text and simple graphics. It was not like browsing the modern internet. Instead, it gave access to selected databases managed by service providers. These services included electronic phone books, travel booking, news updates, shopping catalogs, and sometimes basic banking.

Different countries developed their own versions of viewdata. The UK's system was called Prestel, Canada had Telidon, and other countries built similar services. Although it was innovative for its time, viewdata was later overtaken by personal computers, the internet, and better graphical interfaces. Even so, it remains an important step in the history of online information services. It showed that people wanted to connect to useful information from home, and it helped point the way toward later digital systems. You can think of it as an early ancestor of online portals and other screen-based information services.