IT &computer MCQ section 1 MCQ Questions & Answers Detailed Explanation

Answer: (b)

The First supercomputer was Cray XMP-14 which was installed at National Centre for Medium Range Weather Forecasting, New Delhi, in 1989. Param was developed by C-DAC Pune in 1991.

Answer: (a)

Adam Osborne was an American entrepreneur who was best known for creating the first commercially available portable computer, the Osborne 1, released in April 1981.

Ian Wilmut is best known as the leader of the research group that in 1996 first cloned a mammal from an adult somatic cell, a Finnish Dorset lamb named Dolly.

Answer: (a)

Nanotechnology (sometimes shortened to “nanotech”) is the manipulation of matter on an atomic and molecular scale.

Generally, nanotechnology works with materials, devices, and other structures with at least one dimension sized from 1 to 100 nanometres which is equal to 10–9 m.

Answer: (c)

The Epson HX-20 (also known as the HC-20) is generally regarded as the first laptop computer, announced in November 1981, although first sold widely in 1983.

It was hailed by Business Week magazine as the “fourth revolution in personal computing”.

Answer: (c)

When the page (data) requested by a program is not available in the memory, it is called a page fault.

It occurs when a program accesses a page that has been mapped in address space but has not been loaded in its main memory (RAM). This usually results in the application being shut down.

Answer: (a)

ENIAC (Electronic Numerical Integrator and Computer) was the first electronic general-purpose computer. Charles Babbage, at the University of Pennsylvania’s Moore School of Electrical Engineering, was one of its co-inventors.