The period of first generation computers (19461958) is referred to as the Vacuum Tube Years. The first generation computers were huge, slow, expensive, and often undependable. In 1946 Presper Eckert and John Mauchly built the ENIAC electronic computer which used vacuum tubes instead of the mechanical switches of the Mark I. The ENIAC led to other vacuum tube type computers like the EDVAC (Electronic Discrete Variable Automatic Computer) and the UNIVAC I (UNIVersal Automatic Computer).

Correct Option: D

The period of first generation computers (19461958) is referred to as the Vacuum Tube Years. The first generation computers were huge, slow, expensive, and often undependable. In 1946 Presper Eckert and John Mauchly built the ENIAC electronic computer which used vacuum tubes instead of the mechanical switches of the Mark I. The ENIAC led to other vacuum tube type computers like the EDVAC (Electronic Discrete Variable Automatic Computer) and the UNIVAC I (UNIVersal Automatic Computer).

A local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.

Correct Option: B

A local area network (LAN) is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. The defining characteristics of LANs, in contrast to wide area networks (WANs), include their usually higher data-transfer rates, smaller geographic area, and lack of a need for leased telecommunication lines.

A personal network is a set of human contacts known to an individual, with whom that individual would expect to interact at intervals to support a given set of activities. Personal networks are intended to be mutually beneficial–extending the concept of teamwork beyond the immediate peer group. The term is usually encountered in the workplace
A personal network is a set of human contacts known to an individual, with whom that individual would expect to interact at intervals to support a given set of activities. Personal networks are intended to be mutually beneficial–extending the concept of teamwork beyond the immediate peer group. The term is usually encountered in the workplace

Correct Option: C

A personal network is a set of human contacts known to an individual, with whom that individual would expect to interact at intervals to support a given set of activities. Personal networks are intended to be mutually beneficial–extending the concept of teamwork beyond the immediate peer group. The term is usually encountered in the workplace

Desktop publishing software (abbreviated DTP) is the creation of printed materials using page layout on a personal computer. When used skillfully, desktop publishing software can produce printed literature with attractive layouts and typographic quality comparable to traditional typography and printing.

Correct Option: B

Desktop publishing software (abbreviated DTP) is the creation of printed materials using page layout on a personal computer. When used skillfully, desktop publishing software can produce printed literature with attractive layouts and typographic quality comparable to traditional typography and printing.

ENIAC was the first electronic general-purpose computer. It was Turing-complete, digital, and capable of being reprogrammed to solve a full range of computing problems. The 18,000-tube ENIAC was completed in 1946.

Correct Option: A

ENIAC was the first electronic general-purpose computer. It was Turing-complete, digital, and capable of being reprogrammed to solve a full range of computing problems. The 18,000-tube ENIAC was completed in 1946.