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.