Which term describes a memory area that stores data and information waiting to be sent to an input or output device?

• A. An area of memory that stores data and information waiting to be sent to an input or output device
• B. A small picture that represents a program or file
• C. An area of RAM used to store programs permanently
• D. A server that stores web pages for quick access

Answer: (A)

A buffer is a temporary storage area that holds data waiting to be sent to an input or output device. This remaining space lets the system accommodate different speeds between the data source and the device that uses it, so data isn’t lost while one side waits. For example, when you print, the document goes into a print buffer before the printer starts processing, allowing the computer to keep sending more data while the printer catches up. Streaming video also uses a buffer to preload content so playback isn’t interrupted by small delays. The other options describe different concepts—an icon is just a visual shortcut, RAM is general-purpose memory not specifically for queuing IO, and a server storing web pages relates to delivering content over a network rather than managing data waiting for an IO device.