A vacuum tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. Although superseded by second generation, transistorized computers , vacuum tube computers continued to be built into the 1960s. These computers were mostly one-of-a-kind designs.
Answers & Comments
Answer:
D vacuum tubes
Explanation:
A vacuum tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. Although superseded by second generation, transistorized computers , vacuum tube computers continued to be built into the 1960s. These computers were mostly one-of-a-kind designs.