[练习] #鱼C五周年嘉年华#N倍奖励<一>

The design of the interface circuitry for an output device, such as a computer monitor, is somewhat different than that for the input device. As shown in Figure 2-8, the tri-state buffers are replaced by a register. The tri-state buffers are used in input device interfaces to make sure that no more than one device writes data to the bus at any time. Since the output devices read data from the bus, rather that write data to it, they don't need the buffers. The data can be made available to all output devices; only the device with the correct address will read it in.

输出设备（如显示器）接口电路的设计与输入设备的设计有所不同。如图2-8所示，寄存器代替了三态缓冲器。输入设备中使用三态缓冲器是为了确保在任何时刻都只有一个设备向总线写数据，而输出设备是从总线读取数据，不是写数据，因此不需要缓冲器。数据对于所有的输出设备都可获得，但只有具有正确地址的设备才会读取它。

He's bulked up quite a bit since he's been going to the gym.

“由于一直去健身房健身，他长壮实了很多。”bulk up指身体变得强壮，尤其是指健身增加肌肉量。除此以外，bulk up还可指“增加，积累”，尤其指增加厚度。quite a bit指“很多，相当多”，也可以用quite a lot。