Security

Spain: 2021 spyware attack targeted prime minister's phone

Spanish officials said Monday that the cellphones of the prime minister and the defense minister were infected last year with Pegasus spyware that is only available to government agencies in an unauthorized operation.

Britain gears up to watch TV in self-driving cars

Motorists can sit back and watch TV once self-driving cars are approved on British roads but will be banned from using handheld mobile phones, government plans revealed Wednesday.

Business

Examining the development of music streaming

Until the invention of audio recording devices, the music industry as it was involved live performance and the selling of sheet music for people to play their favorite pieces at home. The invention of recording and playback ...

Electronics & Semiconductors

Computer scientists show how bacteria can fuel low-power sensors

Computer scientists at the University of California San Diego are showing how soil microbes can be harnessed to fuel low-power sensors. This opens new possibilities for microbial fuel cells (MFCs), which can power soil hydration ...

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Telephone

The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.

The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.

This text uses material from Wikipedia, licensed under CC BY-SA