IT &computer MCQ section 2 MCQ Questions & Answers Detailed Explanation

Answer: (a)

The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite. It is a network of networks linked by a broad array of electronic, wireless and optical networking technologies.

Cyberspace refers to the global network of interdependent information technology infrastructures, telecommunications networks and computer processing systems in which online communication takes place.

Answer: (b)

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.

Answer: (a)

A hard copy is a printed copy of information from a computer. Sometimes referred to as a printout, a hard copy is so-called because it exists as a physical object.

The same information, viewed on a computer display or sent as an e-mail attachment, is referred to as a soft copy.

Answer: (a)

Linux, Windows 98 and Windows 7 are examples of operating systems, the system software that manages computer hardware and software resources and provides common services for computer programs.

C++ is a middle-level programming language developed by Bjarne Stroustrup starting in 1979 at Bell Labs.

Answer: (c)

Speed of processor chip is measured in megahertz (MHz) and gigahertz (GHz).

Answer: (c)

A modem takes the digital signal from the computer and converts it to "analog". It does this by both creating an analog sine wave and then "MODulating" it. Since the result still represents digital data, it could also be called a digital signal instead of analog.