1951 - First electricity generated by nuclear energy.

1955 - Nautilus first Nuclear power submarine is built in US.

1963 - First Mini computer is built by digital equipment.

1970 - Boeing 747 which carried five hundred passengers enters into service.

1970-71 - The Intel 4004 The first microprocessor announced.

1972 - The CAT scan used to produce an image of the human brain.

1974 - The CLIP4 the first computer with parallel architecture, developed by John Backus at IBM.

1975 - The Altair 8800 the first PC or microcomputer is launched.

1976 - Har Gobind Khorana and team constructed the first artificial Gene to function naturally when inserted into a bacterial cell.

1978 - The world’s first test-tube baby is born in the UK.

Compact discs were first demonstrated.

1980 - AIDS is first recognized in the US.

1981 - IBM launched the IBM PC.

1983 - The virus responsible for AIDS is identified independently at the Pasteur Institute and at the National Cancer Institute.

1984 - Apple launched the MACINTOSH computer.

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