1) The Industrial Revolution led to significant urbanization, as people migrated from rural areas to cities in search of employment in factories.

2) The term "cloud computing" refers to the delivery of computing services, including storage, databases, and software, over the internet rather than on a local server.

3) The first consumer digital video recorder (DVR), the TiVo, was introduced in 1999 and allowed users to record and store television programs for later viewing.

4) The first graphical web browser, Mosaic, was released in 1993 and played a key role in popularizing the World Wide Web.