FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -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 Although superseded by second-generation transistorized computers, vacuum-tube computers continued to be built into the 1960s.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.

Detailed explanation-2: -The ENIAC. The Electronic Numerical Integrator and Computer, also known as the ENIAC, was the first computer that would use the vacuum tube.

Detailed explanation-3: -The most widely used mechanism in vacuum tubes is thermionic emission, or electron emission by application of heat. The amount of energy needed to release electrons from a given material is known as its electronic work function.

Detailed explanation-4: -An electronic device that controls the flow of electrons in a vacuum. It is used as a switch, amplifier or display screen (CRT). Used as on/off switches, vacuum tubes allowed the first computers to perform digital computations.

Detailed explanation-5: -The ENIAC was the first operational electronic general-purpose computer, which stands for Electronic Numerical Integrator and Computer. In ENIAC, 18000 vacuum tubes were used to build it in 1943. And, it was built at the University of Pennsylvania’s Moore School of Engineering with government funds.