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

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.

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: (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: (b)

Adhoc mode is a framework in which devices or stations communicate directly with each other, without the use of an Access Point (AP). Ad-hoc mode is also referred to as peer-to-peer mode or an Independent Basic Service Set (IBSS).

Ad-hoc mode is useful for establishing a network where wireless infrastructure does not exist or where services are not required.

Answer: (d)

DVD stands for Digital Versatile Disk. It is an optical disc storage format, invented and developed by Philips, Sony, Toshiba and Panasonic in 1995.

When first invented, DVD stands for Digital Video Disk. Later on, DVD Forum proposed the backronym Digital Versatile Disk.

Answer: (c)

A Wide Area Network (WAN) is a network that covers a broad area (i.e., any telecommunications network that links across metropolitan, regional, or national boundaries) using private or public network transports.

Business and government entities utilize WANs to relay data among employees, clients, buyers, and suppliers from various geographical locations.

In essence, this mode of telecommunication allows a business to effectively carry out its daily function regardless of location.