A computer is a device that can be programmed to process data. Computers range in size and capability - from small, cubic millimeter small mini-computer to large, room-sized supercomputer.
The first programmable calculating machine the Z3 was designed by German engineer Konrad Zuse in 1941. The Z3 weighed about a ton. After the development of the microprocessor in the 1970s, size and cost of computers shrank. In 1981 IBM introduced the first personal computer (PC). Since then, the term "computer" usually refers to a portable folding computer (notebook) or box-shaped desktop computer.
Companies in South Korea are increasingly using artificial intelligence in their recruitment processes. Often a candidate will be interviewed by a computer, rather than a real person. As a result, many jobseekers are taking classes to learn how to defeat the AI algorithms.
Half of the world's population is not yet connected to the internet. Many are poor and live in places with bad infrastructure. A pilot project that's been bringing the web to rural Tanzania might be an example of the way forward for other places as well. The reporting was supported by the Internet Society.