Examlex
Define the relationship between operating system software and utility software.
Circuit Switching
A telecommunications method that establishes a dedicated physical path between two points for the duration of the connection.
Second-Level Domain
A domain that’s directly below a top-level domain.
Instant Messaging
A form of real-time communication between two or more people based on typed text, images, video, or voice over the Internet.
Internet Cache
A section of the hard drive that stores information that may be needed again, such as Internet protocol addresses and frequently accessed web pages.
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