A child being immunized against polio. Immunization, or immunisation, is the process by which an individual's immune system becomes fortified against an agent (known as the immunogen). When this system is exposed to molecules that are foreign to the body, called non-self, it will orchestrate an immune response, and it will also develop the ability to quickly respond to a subsequent encounter because of immunological memory.
Windows Audio Device Graph Isolation is an audio file for recent versions of Windows that prevents other applications from modifying audio-related content and plug-ins. The application also serves as the audio engine for Windows.
A crossover is an electronics device that takes a single input signal and creates two or three output signals consisting of separated bands of high-, mid-, and low-range frequencies. The different bands of frequencies feed the different speakers, or âdrivers,â in a sound system: tweeters, woofers, and subwoofers.