alleryStart learning →Early electromechanical digital computers did their calculations using what?
AMechanical relays
BVacuum tubes
CLaser beams
DSilicon chips
Answer & Solution
Correct answer: A. Mechanical relays
Electric switches drove mechanical relays; these were slow and later replaced by vacuum tubes.
Keep practising Computer fundamentals, history and generations
Browse all Computer fundamentals, history and generations questions for Olympiad (Class 6), or explore more Computer Science topics.
Related questions
Which early device was mostly used for arithmetic and grew from Babylonian tools?After the control unit reads an instruction, what is the next step?Instructions that change the program counter, allowing loops, are called what?The program counter in a CPU keeps track of what?Claude Shannon's 1937 thesis applied which branch of maths to switching circuits?In the 1770s Pierre Jaquet-Droz built a doll that could do what?Which machine below is a digital computer, not an analog one?Which order shows when these arrived, earliest first?