The term "double buffered" is used in which of the following?
Pick an option to check yourself, or open the answer below.
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Correct answer: B. Asynchronous Communication Interface
Explanation
In computer I/O organization, the Asynchronous Communication Interface (ACI/UART) chip's receiver register is described as being "double buffered": an incoming serial character is first assembled in a shift register and then moved into a separate holding (data) register, so the CPU can read one character while the next is already being received, preventing data from being overwritten before it is read. This double-buffering terminology is specifically associated with the Asynchronous Communication Interface, making option (2) correct.More Computer System Architecture questions
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