 
 <prompt> Wetin dey inside di next wave of computers? Based on di last question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Early digital computers na electromechanical; electric switches dey drive mechanical relays to perform the calculation. These devices bin get low operating speed and dem later pass away as faster all-electric computers, wey originally dey use vacuum tubes. The Z2, wey German engineer Konrad Zuse create for 1939, na one of the earliest examples of an electromechanical relay computer. 