Вопрос № 627008 - Английский язык

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You can narrow a search in the Internet using logical operators such as AND, OR and NOT. AND retrieves all the words typed in the text box, OR retrieves either of the words and NOT excludes words. Spelling is important when typing in keywords, but a search engine will not usually read punctuation, prepositions and articles.

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Each search engine maintains a unique index, and operates in a particular manner. Different search engines use different robots, scan different pages for different information, use different classification and search strategies and display results in different ways. Before using an unfamiliar search engine for the first time it is always sensible to browse through its help file to get a few tips on what it offers. Most of them attempt - at least nominally - to incorporate the more user-friendly directory style in some way, but trying to keep up with them is a continual learning process.

Memory cards are computer _____ used to add memory to a computer.

Random access memory is automatically _____ when the power is turned off.

Each time a new virus is discovered, anti-virus _______ must be updated.

______ is the main printed circuit board in a computer that carries the system buses.