Горькая правда о турбо-кнопках.

The word “turbo” is an abbreviation of “turbocharger,” which is what makes internal combustion engines go faster. In the ’80s, it was common for commercial marketing departments to apply the word “turbo” to products to denote extra speed or power. No manufacturer would ever include a large button labeled “Slow” on the front of its speedy new PC, so “Turbo” was a clever choice on Eagle’s part.

https://www.howtogeek.com/6...-your-pc-in-the-90s/