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【Ex.5】将下列词填入适当的位置(每词只用一次) speed device other considered exists hardware effective operate moving designer A buffer is a data area shared by__(1)__ devices or program processes that __(2)__ at different speeds or with different sets of priorities. The buffer allows each __(3)__ or process to operate without being held up by the__(4)__. In order for a buffer to be__(5)__, the size of the buffer and the algorithms for__(6)__ data into and out of the buffer need to be __(7)__by the buffer__(8)__. Like a cache, a buffer is a "midpoint holding place" but__(9)__ not so much to accelerate the__(10)__ of an activity as to support the coordination of separate activities.