A keyword in an Internet search is one of the words used to find matching web pages. It was popularized during the early days of search engine development, as it was not possible to ask natural language questions and find the desired sites. Searches gave the best results if only a few keywords were chosen and searched for. These "keywords" captured the essence of the topic in question and were likely to be present on all sites listed by the search engine.

Source: wikipedia.org

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Kilobit is unambiguously equal to 1,024 bit.

A kilobyte equal to the 1024 bytes