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A jet engine emits a whine of frequency 3000 Hz.When the engine is moving directly away from an observer at half the speed of sound,an observer hears a frequency of
Expansion Card
A hardware component that adds functionality to a computer by plugging into its expansion slot, enhancing its capabilities.
RAM
Random Access Memory, a type of computer memory that is used to store data temporarily while a computer is running, facilitating quick access by the CPU.
ESATA
External Serial Advanced Technology Attachment, an extension of the SATA interface to connect external storage devices to a computer.
Optical Media
Storage disks such as CDs, DVDs, and Blu-ray discs that use laser light to read and write data.
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