摘要: The two basic elements of the block diagrams of the Whirlwind computers, e.g., the block diagram of the accumulator are the flip-flop circuit and the gate circuit, symbol GT. These two elements need not necessarily employ vacuum t... 展开 The two basic elements of the block diagrams of the Whirlwind computers, e.g., the block diagram of the accumulator are the flip-flop circuit and the gate circuit, symbol GT. These two elements need not necessarily employ vacuum tubes, since other non-linear components exist which might possibly be used. However, in Whirlwind I, two pentodes and a pentode trigger tube will be used for each flip-flop and a pentode gate tube will be employed in each gate circuit. Vacuum tubes are also used for certain special functions in the computer, such as the sine-wave oscillator or the pulse generator in the master clock. In addition, vacuum tubes must be used as power amplifiers in places where a pulse is to be generated across a low impedance. 收起