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

Answer: (d)

Firewall

Answer: (d)

The term “Information Technology” (IT) has been variously defined. It is defined as the coming together of computing and telecommunications for the purpose of handling information; the application of technologies to information handling; including generation, storage, processing, retrieval and dissemination.

It is a broad-based term comprising the gathering (acquisition), organization (packaging), storage and retrieval (dissemination) of information. Internet is an essential component of it.

Answer: (c)

ALU stands for arithmetic-logic unit which is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words. It is a fundamental building block of the central processing unit found in digital computers.

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: (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)

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.